ISQ System

Namespace: mp_units::isq

Module: mp_units.systems

Header: <mp-units/systems/isq.h>

Secondary Headers:

• <mp-units/systems/isq/atomic_and_nuclear_physics.h>
• <mp-units/systems/isq/base_quantities.h>
• <mp-units/systems/isq/electromagnetism.h>
• <mp-units/systems/isq/information_science_and_technology.h>
• <mp-units/systems/isq/light_and_radiation.h>
• <mp-units/systems/isq/mechanics.h>
• <mp-units/systems/isq/si_quantities.h>
• <mp-units/systems/isq/space_and_time.h>
• <mp-units/systems/isq/thermodynamics.h>

Dimensions

Name	Symbol
dim_amount_of_substance	N
dim_electric_current	I
dim_length	L
dim_luminous_intensity	J
dim_mass	M
dim_thermodynamic_temperature	Θ
dim_time	T
dim_traffic_intensity	A

Quantities

Quantity	Character	Dimension	Kind of	Parent	Equation	Hierarchy
Celsius_temperature	Real	Θ	thermodynamic_temperature	thermodynamic_temperature	—	view
Gibbs_energy	Real	L²MT⁻²	energy	enthalpy	—	view
Gibbs_function	Real	L²MT⁻²	energy	enthalpy	alias to Gibbs_energy	view
Hamming_distance	Real	—	dimensionless	dimensionless	—	view
Helmholtz_energy	Real	L²MT⁻²	energy	internal_energy	—	view
Helmholtz_function	Real	L²MT⁻²	energy	internal_energy	alias to Helmholtz_energy	view
Joule_Thomson_coefficient	Real	LΘT²M⁻¹	Joule_Thomson_coefficient	—	thermodynamic_temperature / pressure	view
Massieu_function	Real	L²MΘ⁻¹T⁻²	Massieu_function	—	Helmholtz_energy / thermodynamic_temperature	view
Planck_function	Real	L²MΘ⁻¹T⁻²	Planck_function	—	Gibbs_energy / thermodynamic_temperature	view
Poisson_number	Real	—	dimensionless	dimensionless	width / length	view
Poynting_vector	Vector	MT⁻³	Poynting_vector	—	electric_field_strength * magnetic_field_strength	view
Young_modulus	Real	ML⁻¹T⁻²	modulus_of_elasticity	—	alias to modulus_of_elasticity	view
absorbed_dose	Real	L²T⁻²	absorbed_dose	—	energy / mass	view
acceleration	Vector	LT⁻²	acceleration	—	velocity / duration	view
acceleration_of_free_fall	Vector	LT⁻²	acceleration	acceleration	—	view
action	Real	L²MT⁻¹	action	—	energy * time	view
active_energy	Real	L²MT⁻²	active_energy	—	instantaneous_power * time	view
active_power	Real	L²MT⁻³	power	power	inverse(period) * (instantaneous_power * time)	view
activity	Real	T⁻¹	activity	—	inverse(duration)	view
admittance	Complex	I²T³L⁻²M⁻¹	admittance	—	inverse(impedance)	view
admittance_of_vacuum	Complex	I²T³L⁻²M⁻¹	admittance	admittance	inverse(impedance_of_vacuum)	view
altitude	Real	L	length	length	alias to height	view
amount_of_heat	Real	L²MT⁻²	energy	energy	alias to heat	view
amount_of_substance	Real	N	amount_of_substance	—	—	view
angular_acceleration	Vector	T⁻²	angular_acceleration	—	angular_velocity / duration	view
angular_displacement	Real	—	angular_measure	angular_measure	alias to rotational_displacement	—
angular_frequency	Real	T⁻¹	angular_frequency	—	phase_angle / duration	view
angular_impulse	Vector	L²MT⁻¹	angular_impulse	—	moment_of_force * time	view
angular_measure	Real	—	angular_measure	dimensionless	arc_length / radius	—
angular_momentum	Vector	L²MT⁻¹	angular_momentum	—	position_vector * momentum	view
angular_repetency	Real	L⁻¹	angular_repetency	—	inverse(wavelength)	view
angular_velocity	Vector	T⁻¹	angular_velocity	—	angular_displacement / duration	view
angular_wavenumber	Real	L⁻¹	angular_repetency	—	alias to angular_repetency	view
apparent_admittance	Real	I²T³L⁻²M⁻¹	admittance	admittance	—	view
apparent_impedance	Real	L²MI⁻²T⁻³	impedance	impedance	—	view
apparent_power	Real	L²MT⁻³	complex_power	complex_power	—	view
arc_length	Real	L	length	length	alias to path_length	view
area	Real	L²	area	—	pow<2>(length)	view
areic_charge	Real	ITL⁻²	surface_density_of_electric_charge	—	alias to surface_density_of_electric_charge	view
areic_electric_charge	Real	ITL⁻²	surface_density_of_electric_charge	—	alias to surface_density_of_electric_charge	view
attenuation	Real	L⁻¹	attenuation	—	inverse(distance)	view
binary_digit_rate	Real	T⁻¹	transfer_rate	transfer_rate	—	view
bit_period	Real	T	duration	period_duration	alias to period_of_binary_digits	view
bit_rate	Real	T⁻¹	transfer_rate	transfer_rate	alias to binary_digit_rate	view
breadth	Real	L	length	length	alias to width	view
bulk_modulus	Real	ML⁻¹T⁻²	modulus_of_compression	—	alias to modulus_of_compression	view
call_intensity	Real	T⁻¹	call_intensity	—	inverse(duration)	view
calling_rate	Real	T⁻¹	call_intensity	—	alias to call_intensity	view
capacitance	Real	I²T⁴L⁻²M⁻¹	capacitance	—	electric_charge / voltage	view
carrier_power	Real	L²MT⁻³	power	power	—	view
clock_frequency	Real	T⁻¹	frequency	frequency	—	view
clock_rate	Real	T⁻¹	frequency	frequency	alias to clock_frequency	view
coefficient_of_heat_transfer	Real	MΘ⁻¹T⁻³	coefficient_of_heat_transfer	—	density_of_heat_flow_rate / thermodynamic_temperature	view
coefficient_of_static_friction	Real	—	dimensionless	dimensionless	alias to static_friction_coefficient	view
coefficient_of_thermal_insulance	Real	ΘT³M⁻¹	thermal_insulance	—	alias to thermal_insulance	view
coercive_field_strength	Real	IL⁻¹	magnetization	magnetic_field_strength	alias to coercivity	view
coercivity	Real	IL⁻¹	magnetization	magnetic_field_strength	—	view
completed_call_intensity	Real	T⁻¹	call_intensity	call_intensity	—	view
complex_admittance	Complex	I²T³L⁻²M⁻¹	admittance	—	alias to admittance	view
complex_impedance	Complex	L²MI⁻²T⁻³	impedance	—	alias to impedance	view
complex_power	Complex	L²MT⁻³	complex_power	—	voltage_phasor * electric_current_phasor	view
compressibility	Real	LT²M⁻¹	compressibility	—	inverse(volume) * (volume / pressure)	view
conductance	Real	I²T³L⁻²M⁻¹	conductance	—	inverse(resistance)	view
conductance_for_alternating_current	Real	I²T³L⁻²M⁻¹	conductance	conductance	—	view
conductivity	Real	I²T³L⁻³M⁻¹	conductivity	—	electric_current_density / electric_field_strength	view
coupling_factor	Real	—	dimensionless	dimensionless	mutual_inductance / pow<1, 2>(pow<2>(self_inductance))	view
cubic_expansion_coefficient	Real	Θ⁻¹	cubic_expansion_coefficient	—	inverse(volume) * (volume / thermodynamic_temperature)	view
curvature	Real	L⁻¹	curvature	—	inverse(radius_of_curvature)	view
damping_coefficient	Real	T⁻¹	damping_coefficient	—	inverse(time_constant)	view
decision_content	Real	—	dimensionless	dimensionless	—	view
density	Real	ML⁻³	mass_density	—	alias to mass_density	view
density_of_heat_flow_rate	Real	MT⁻³	density_of_heat_flow_rate	—	heat_flow_rate / area	view
depth	Real	L	length	length	alias to height	view
dew_point_temperature	Real	Θ	thermodynamic_temperature	thermodynamic_temperature	—	view
diameter	Real	L	length	width	—	view
dimensionless	Real	1	dimensionless	—	—	view
displacement	Vector	L	length	length	—	view
displacement_current	Real	I	electric_current	electric_current	displacement_current_density * area	view
displacement_current_density	Vector	IL⁻²	displacement_current_density	—	electric_flux_density / time	view
distance	Real	L	length	path_length	—	view
dose_equivalent	Real	L²T⁻²	dose_equivalent	—	absorbed_dose * ionizing_radiation_quality_factor	view
drag_coefficient	Real	—	dimensionless	dimensionless	drag_force / (mass_density * pow<2>(speed) * area)	view
drag_factor	Real	—	dimensionless	dimensionless	alias to drag_coefficient	view
drag_force	Vector	LMT⁻²	force	force	—	view
duration	Real	T	duration	—	—	view
dynamic_friction_factor	Real	—	dimensionless	dimensionless	alias to kinetic_friction_factor	view
dynamic_friction_force	Vector	LMT⁻²	force	force	alias to kinetic_friction_force	view
dynamic_viscosity	Real	ML⁻¹T⁻¹	dynamic_viscosity	—	shear_stress * length / velocity	view
electric_charge	Real	IT	electric_charge	—	electric_current * time	view
electric_charge_density	Real	ITL⁻³	electric_charge_density	—	electric_charge / volume	view
electric_constant	Real	I²T⁴L⁻³M⁻¹	electric_constant	—	inverse(magnetic_constant * pow<2>(speed_of_light_in_vacuum))	view
electric_current	Real	I	electric_current	—	—	view
electric_current_density	Vector	IL⁻²	electric_current_density	—	electric_charge_density * velocity	view
electric_current_phasor	Complex	I	electric_current	electric_current	—	view
electric_dipole_moment	Vector	ILT	electric_dipole_moment	—	electric_charge * displacement	view
electric_displacement	Vector	ITL⁻²	electric_polarization	electric_polarization	alias to electric_flux_density	view
electric_field_strength	Vector	LMI⁻¹T⁻³	electric_field_strength	—	force / electric_charge	view
electric_flux	Real	IT	electric_flux	—	electric_flux_density * area	view
electric_flux_density	Vector	ITL⁻²	electric_polarization	electric_polarization	—	view
electric_polarization	Vector	ITL⁻²	electric_polarization	—	electric_dipole_moment / volume	view
electric_potential	Real	L²MI⁻¹T⁻³	electric_potential	—	electric_field_strength * length	view
electric_potential_difference	Real	L²MI⁻¹T⁻³	electric_potential	electric_potential	—	view
electric_susceptibility	Real	—	dimensionless	dimensionless	electric_polarization / electric_constant / electric_field_strength	view
electric_tension	Real	L²MI⁻¹T⁻³	electric_potential	electric_potential	alias to voltage	view
electric_tension_phasor	Complex	L²MI⁻¹T⁻³	electric_potential	voltage	alias to voltage_phasor	view
electromagnetic_energy_density	Real	ML⁻¹T⁻²	electromagnetic_energy_density	—	electric_field_strength * electric_flux_density	view
electromagnetism_power	Real	L²MT⁻³	power	power	voltage * electric_current	view
elementary_charge	Real	IT	electric_charge	electric_charge	—	view
energy	Real	L²MT⁻²	energy	—	mass * pow<2>(length) / pow<2>(time)	view
enthalpy	Real	L²MT⁻²	energy	energy	—	view
entropy	Real	L²MΘ⁻¹T⁻²	entropy	—	kinetic_energy / thermodynamic_temperature	view
equivalent_binary_digit_rate	Real	T⁻¹	transfer_rate	binary_digit_rate	—	view
equivalent_binary_storage_capacity	Real	—	storage_capacity	storage_capacity	—	—
equivalent_bit_rate	Real	—	—	—	alias to bit_rate	view
error_probability	Real	—	dimensionless	dimensionless	—	view
extinction	Real	L⁻¹	attenuation	—	alias to attenuation	view
force	Vector	LMT⁻²	force	—	mass * acceleration	view
frequency	Real	T⁻¹	frequency	—	inverse(period_duration)	view
gauge_pressure	Real	ML⁻¹T⁻²	pressure	pressure	—	view
group_speed	Real	LT⁻¹	group_speed	—	angular_frequency / angular_repetency	view
heat	Real	L²MT⁻²	energy	energy	—	view
heat_capacity	Real	L²MΘ⁻¹T⁻²	heat_capacity	—	heat / thermodynamic_temperature	view
heat_flow_rate	Real	L²MT⁻³	heat_flow_rate	—	heat / time	view
height	Real	L	length	length	—	view
impedance	Complex	L²MI⁻²T⁻³	impedance	—	voltage_phasor / electric_current_phasor	view
impedance_of_vacuum	Complex	L²MI⁻²T⁻³	impedance	impedance	—	view
impulse	Vector	LMT⁻¹	impulse	—	force * time	view
induced_voltage	Real	L²MI⁻¹T⁻³	electric_potential	voltage	—	view
inductance	Real	L²MI⁻²T⁻²	inductance	—	protoflux / electric_current	view
instantaneous_power	Real	L²MT⁻³	power	power	alias to electromagnetism_power	view
internal_energy	Real	L²MT⁻²	energy	enthalpy	—	view
ionizing_radiation_quality_factor	Real	—	dimensionless	dimensionless	—	view
irradiance	Real	MT⁻³	irradiance	—	radiant_flux / area	view
isentropic_compressibility	Real	LT²M⁻¹	isentropic_compressibility	—	inverse(volume) * (volume / pressure)	view
isentropic_expansion_factor	Real	—	dimensionless	dimensionless	alias to isentropic_exponent	view
isentropic_exponent	Real	—	dimensionless	dimensionless	volume / pressure * (pressure / volume)	view
isothermal_compressibility	Real	LT²M⁻¹	isothermal_compressibility	—	inverse(volume) * (volume / pressure)	view
kinematic_viscosity	Real	L²T⁻¹	kinematic_viscosity	—	dynamic_viscosity / mass_density	view
kinetic_energy	Real	L²MT⁻²	energy	mechanical_energy	mass * pow<2>(speed)	view
kinetic_friction_factor	Real	—	dimensionless	dimensionless	kinetic_friction_force / force	view
kinetic_friction_force	Vector	LMT⁻²	force	force	—	view
latent_heat	Real	L²MT⁻²	energy	heat	—	view
leakage_factor	Real	—	dimensionless	dimensionless	pow<2>(coupling_factor)	view
length	Real	L	length	—	—	view
light_speed_in_vacuum	Real	LT⁻¹	speed	speed	alias to speed_of_light_in_vacuum	view
line_digit_rate	Real	T⁻¹	modulation_rate	—	alias to modulation_rate	view
linear_density	Real	ML⁻¹	linear_mass_density	—	alias to linear_mass_density	view
linear_density_of_electric_charge	Real	ITL⁻¹	linear_density_of_electric_charge	—	electric_charge / length	view
linear_electric_current_density	Vector	IL⁻¹	linear_electric_current_density	—	surface_density_of_electric_charge * velocity	view
linear_expansion_coefficient	Real	Θ⁻¹	linear_expansion_coefficient	—	inverse(length) * (length / thermodynamic_temperature)	view
linear_mass_density	Real	ML⁻¹	linear_mass_density	—	mass / length	view
lineic_charge	Real	ITL⁻¹	linear_density_of_electric_charge	—	alias to linear_density_of_electric_charge	view
lineic_electric_charge	Real	ITL⁻¹	linear_density_of_electric_charge	—	alias to linear_density_of_electric_charge	view
linked_magnetic_flux	Real	L²MI⁻¹T⁻²	magnetic_flux	magnetic_flux	—	view
logarithmic_decrement	Real	—	dimensionless	dimensionless	damping_coefficient * period_duration	view
loss_angle	Real	—	angular_measure	angular_measure	—	—
loss_factor	Real	—	dimensionless	dimensionless	inverse(quality_factor)	view
loss_probability	Real	—	dimensionless	dimensionless	—	view
luminal_speed	Real	LT⁻¹	speed	speed	alias to speed_of_light_in_vacuum	view
luminous_intensity	Real	J	luminous_intensity	—	—	view
magnetic_area_moment	Vector	IL²	magnetic_moment	—	alias to magnetic_moment	view
magnetic_constant	Real	LMI⁻²T⁻²	magnetic_constant	—	electric_potential * time / (electric_current * length)	view
magnetic_dipole_moment	Vector	L³MI⁻¹T⁻²	magnetic_dipole_moment	—	magnetic_constant * magnetic_moment	view
magnetic_field_strength	Vector	IL⁻¹	magnetization	magnetization	—	view
magnetic_flux	Real	L²MI⁻¹T⁻²	magnetic_flux	—	magnetic_flux_density * area	view
magnetic_flux_density	Vector	MI⁻¹T⁻²	magnetic_flux_density	—	force / (electric_charge * velocity)	view
magnetic_moment	Vector	IL²	magnetic_moment	—	electric_current * area	view
magnetic_polarization	Vector	MI⁻¹T⁻²	magnetic_polarization	—	magnetic_constant * magnetization	view
magnetic_potential	Real	I	electric_current	electric_current	—	view
magnetic_susceptibility	Real	—	dimensionless	dimensionless	magnetization / magnetic_field_strength	view
magnetic_tension	Real	I	electric_current	electric_current	magnetic_field_strength * position_vector	view
magnetic_vector_potential	Vector	LMI⁻¹T⁻²	magnetic_vector_potential	—	magnetic_flux_density * length	view
magnetization	Vector	IL⁻¹	magnetization	—	magnetic_moment / volume	view
magnetizing_field	Vector	IL⁻¹	magnetization	magnetization	alias to magnetic_field_strength	view
magnetomotive_force	Real	I	electric_current	electric_current	magnetic_field_strength * position_vector	view
mass	Real	M	mass	—	—	view
mass_change_rate	Real	MT⁻¹	mass_change_rate	—	mass / time	view
mass_concentration_of_water	Real	ML⁻³	mass_concentration_of_water	—	mass / volume	view
mass_concentration_of_water_vapour	Real	ML⁻³	mass_concentration_of_water_vapour	—	mass / volume	view
mass_density	Real	ML⁻³	mass_density	—	mass / volume	view
mass_flow	Vector	ML⁻²T⁻¹	mass_flow	—	mass_density * velocity	view
mass_flow_rate	Real	MT⁻¹	mass_flow_rate	—	mass_flow * area	view
mass_fraction_of_dry_matter	Real	—	dimensionless	mass_fraction_of_water	—	view
mass_fraction_of_water	Real	—	dimensionless	dimensionless	mass_ratio_of_water_to_dry_matter / mass_ratio_of_water_to_dry_matter	view
mass_ratio_of_water_to_dry_matter	Real	—	dimensionless	dimensionless	mass / mass	view
mass_ratio_of_water_vapour_to_dry_gas	Real	—	dimensionless	dimensionless	mass / mass	view
maximum_efficiency	Real	—	dimensionless	dimensionless	thermodynamic_temperature / thermodynamic_temperature	view
mean_queue_length	Real	—	dimensionless	dimensionless	—	view
mechanical_efficiency	Real	—	dimensionless	dimensionless	mechanical_power / mechanical_power	view
mechanical_energy	Real	L²MT⁻²	energy	energy	—	view
mechanical_power	Real	L²MT⁻³	power	power	force * velocity	view
mechanical_work	Real	L²MT⁻²	mechanical_work	—	force * displacement	view
modulation_rate	Real	T⁻¹	modulation_rate	—	inverse(duration)	view
modulus_of_compression	Real	ML⁻¹T⁻²	modulus_of_compression	—	pressure / relative_volume_strain	view
modulus_of_elasticity	Real	ML⁻¹T⁻²	modulus_of_elasticity	—	normal_stress / relative_linear_strain	view
modulus_of_rigidity	Real	ML⁻¹T⁻²	modulus_of_rigidity	—	shear_stress / shear_strain	view
moment_of_force	Vector	L²MT⁻²	moment_of_force	—	position_vector * force	view
moment_of_inertia	Tensor	L²M	moment_of_inertia	—	angular_momentum / angular_velocity	view
momentum	Vector	LMT⁻¹	momentum	—	mass * velocity	view
mutual_inductance	Real	L²MI⁻²T⁻²	mutual_inductance	—	protoflux / electric_current	view
non_active_power	Real	L²MT⁻³	complex_power	apparent_power	pow<1, 2>(pow<2>(apparent_power))	view
normal_stress	Real	ML⁻¹T⁻²	pressure	pressure	—	view
number_of_turns_in_a_winding	Real	—	dimensionless	dimensionless	—	view
path_length	Real	L	length	length	—	view
period	Real	T	duration	duration	alias to period_duration	view
period_duration	Real	T	duration	duration	—	view
period_of_binary_digits	Real	T	duration	period_duration	inverse(binary_digit_rate)	view
period_of_data_elements	Real	T	duration	period_duration	inverse(transfer_rate)	view
permeability	Real	LMI⁻²T⁻²	permeability	—	magnetic_flux_density / magnetic_field_strength	view
permeability_of_vacuum	Real	LMI⁻²T⁻²	magnetic_constant	—	alias to magnetic_constant	view
permeance	Real	L²MI⁻²T⁻²	permeance	—	inverse(reluctance)	view
permittivity	Real	I²T⁴L⁻³M⁻¹	permittivity	—	electric_flux_density / electric_field_strength	view
permittivity_of_vacuum	Real	I²T⁴L⁻³M⁻¹	electric_constant	—	alias to electric_constant	view
phase_angle	Real	—	angular_measure	angular_measure	—	—
phase_coefficient	Real	L⁻¹	phase_coefficient	—	phase_angle / path_length	view
phase_difference	Real	—	angular_measure	phase_angle	—	—
phase_speed	Real	LT⁻¹	phase_speed	—	angular_frequency / angular_repetency	view
phase_speed_of_electromagnetic_waves	Real	LT⁻¹	phase_speed_of_electromagnetic_waves	—	angular_frequency / angular_wavenumber	view
position_vector	Vector	L	length	displacement	—	view
potential_energy	Real	L²MT⁻²	energy	mechanical_energy	—	view
power	Real	L²MT⁻³	power	—	mass * pow<2>(length) / pow<3>(time)	view
power_factor	Real	—	dimensionless	dimensionless	active_power / apparent_power	view
pressure	Real	ML⁻¹T⁻²	pressure	—	force / area	view
pressure_coefficient	Real	ML⁻¹Θ⁻¹T⁻²	pressure_coefficient	—	pressure / thermodynamic_temperature	view
propagation_coefficient	Real	L⁻¹	propagation_coefficient	—	inverse(length)	view
protoflux	Real	L²MI⁻¹T⁻²	protoflux	—	magnetic_vector_potential * displacement	view
quality_factor	Real	—	dimensionless	dimensionless	reactance / resistance	view
quantizing_distortion_power	Real	L²MT⁻³	power	power	—	view
radial_distance	Real	L	length	distance	—	view
radiance	Real	MT⁻³	radiance	—	radiant_intensity / area	view
radiant_energy	Real	L²MT⁻²	energy	energy	—	view
radiant_energy_density	Real	ML⁻¹T⁻²	radiant_energy_density	—	radiant_energy / volume	view
radiant_exitance	Real	MT⁻³	radiant_exitance	—	radiant_flux / area	view
radiant_exposure	Real	MT⁻²	radiant_exposure	—	radiant_energy / area	view
radiant_flux	Real	L²MT⁻³	power	power	radiant_energy / time	view
radiant_intensity	Real	L²MT⁻³	radiant_intensity	—	radiant_flux / solid_angular_measure	view
radiant_power	Real	L²MT⁻³	power	power	alias to radiant_flux	view
radius	Real	L	length	width	—	view
radius_of_curvature	Real	L	length	radius	—	view
ratio_of_specific_heat_capacities	Real	—	dimensionless	dimensionless	specific_heat_capacity_at_constant_pressure / specific_heat_capacity_at_constant_volume	view
reactance	Real	L²MI⁻²T⁻³	impedance	impedance	—	view
reactive_power	Real	L²MT⁻³	reactive_power	—	mass * pow<2>(length) / pow<3>(duration)	view
refractive_index	Real	—	dimensionless	dimensionless	speed_of_light_in_vacuum / speed_of_light_in_a_medium	view
relative_density	Real	—	dimensionless	dimensionless	alias to relative_mass_density	view
relative_humidity	Real	—	dimensionless	dimensionless	pressure / pressure	view
relative_linear_strain	Real	—	dimensionless	dimensionless	length / length	view
relative_mass_concentration_of_vapour	Real	—	dimensionless	dimensionless	mass_concentration_of_water_vapour / mass_concentration_of_water_vapour	view
relative_mass_density	Real	—	dimensionless	dimensionless	mass_density / mass_density	view
relative_mass_ratio_of_vapour	Real	—	dimensionless	dimensionless	mass_ratio_of_water_vapour_to_dry_gas / mass_ratio_of_water_vapour_to_dry_gas	view
relative_permeability	Real	—	dimensionless	dimensionless	permeability / magnetic_constant	view
relative_permittivity	Real	—	dimensionless	dimensionless	permittivity / electric_constant	view
relative_pressure_coefficient	Real	Θ⁻¹	relative_pressure_coefficient	—	inverse(pressure) * (pressure / thermodynamic_temperature)	view
relative_volume_strain	Real	—	dimensionless	dimensionless	volume / volume	view
reluctance	Real	I²T²L⁻²M⁻¹	reluctance	—	magnetic_tension / magnetic_flux	view
repetency	Real	L⁻¹	repetency	—	inverse(wavelength)	view
resistance	Real	L²MI⁻²T⁻³	resistance	—	voltage / electric_current	view
resistance_to_alternating_current	Real	L²MI⁻²T⁻³	impedance	impedance	—	view
resistivity	Real	L³MI⁻²T⁻³	resistivity	—	inverse(conductivity)	view
rolling_drag	Vector	LMT⁻²	force	force	alias to rolling_resistance	view
rolling_friction_force	Vector	LMT⁻²	force	force	alias to rolling_resistance	view
rolling_resistance	Vector	LMT⁻²	force	force	—	view
rolling_resistance_factor	Real	—	dimensionless	dimensionless	force / force	view
rotation	Real	—	dimensionless	dimensionless	—	view
rotational_displacement	Real	—	angular_measure	angular_measure	path_length / radius	—
rotational_frequency	Real	T⁻¹	rotational_frequency	—	rotation / duration	view
second_axial_moment_of_area	Real	L⁴	second_axial_moment_of_area	—	pow<2>(radial_distance) * area	view
second_polar_moment_of_area	Real	L⁴	second_polar_moment_of_area	—	pow<2>(radial_distance) * area	view
section_modulus	Real	L³	section_modulus	—	second_axial_moment_of_area / radial_distance	view
self_inductance	Real	L²MI⁻²T⁻²	inductance	—	alias to inductance	view
shear_modulus	Real	ML⁻¹T⁻²	modulus_of_rigidity	—	alias to modulus_of_rigidity	view
shear_strain	Real	—	dimensionless	dimensionless	displacement / thickness	view
shear_stress	Real	ML⁻¹T⁻²	pressure	pressure	—	view
signal_energy_per_binary_digit	Real	L²MT⁻²	signal_energy_per_binary_digit	—	carrier_power * period_of_binary_digits	view
solid_angular_measure	Real	—	solid_angular_measure	dimensionless	area / pow<2>(radius)	view
source_tension	Real	L²MI⁻¹T⁻³	electric_potential	voltage	alias to source_voltage	view
source_voltage	Real	L²MI⁻¹T⁻³	electric_potential	voltage	—	view
specific_Gibbs_energy	Real	L²T⁻²	specific_Gibbs_energy	—	Gibbs_energy / mass	view
specific_Gibbs_function	Real	L²T⁻²	specific_Gibbs_energy	—	alias to specific_Gibbs_energy	view
specific_Helmholtz_energy	Real	L²T⁻²	specific_Helmholtz_energy	—	Helmholtz_energy / mass	view
specific_Helmholtz_function	Real	L²T⁻²	specific_Helmholtz_energy	—	alias to specific_Helmholtz_energy	view
specific_energy	Real	L²T⁻²	specific_energy	—	energy / mass	view
specific_enthalpy	Real	L²T⁻²	specific_enthalpy	—	enthalpy / mass	view
specific_entropy	Real	L²Θ⁻¹T⁻²	specific_entropy	—	entropy / mass	view
specific_gas_constant	Real	L²Θ⁻¹T⁻²	specific_gas_constant	—	entropy / mass	view
specific_heat_capacity	Real	L²Θ⁻¹T⁻²	specific_heat_capacity	—	heat_capacity / mass	view
specific_heat_capacity_at_constant_pressure	Real	L²Θ⁻¹T⁻²	specific_heat_capacity	specific_heat_capacity	—	view
specific_heat_capacity_at_constant_volume	Real	L²Θ⁻¹T⁻²	specific_heat_capacity	specific_heat_capacity	—	view
specific_heat_capacity_at_saturated_vapour_pressure	Real	L²Θ⁻¹T⁻²	specific_heat_capacity	specific_heat_capacity	—	view
specific_internal_energy	Real	L²T⁻²	specific_internal_energy	—	internal_energy / mass	view
specific_thermodynamic_energy	Real	L²T⁻²	specific_internal_energy	—	alias to specific_internal_energy	view
specific_volume	Real	L³M⁻¹	specific_volume	—	inverse(mass_density)	view
spectral_irradiance	Real	ML⁻¹T⁻³	spectral_irradiance	—	irradiance / wavelength	view
spectral_radiance	Real	ML⁻¹T⁻³	spectral_radiance	—	radiance / wavelength	view
spectral_radiant_energy	Real	LMT⁻²	spectral_radiant_energy	—	radiant_energy / wavelength	view
spectral_radiant_energy_density_in_terms_of_wavelength	Real	ML⁻²T⁻²	spectral_radiant_energy_density_in_terms_of_wavelength	—	radiant_energy_density / wavelength	view
spectral_radiant_energy_density_in_terms_of_wavenumber	Real	MT⁻²	spectral_radiant_energy_density_in_terms_of_wavenumber	—	radiant_energy_density / wavenumber	view
spectral_radiant_exitance	Real	ML⁻¹T⁻³	spectral_radiant_exitance	—	radiant_exitance / wavelength	view
spectral_radiant_exposure	Real	ML⁻¹T⁻²	spectral_radiant_exposure	—	radiant_exposure / wavelength	view
spectral_radiant_flux	Real	LMT⁻³	spectral_radiant_flux	—	radiant_flux / wavelength	view
spectral_radiant_intensity	Real	LMT⁻³	spectral_radiant_intensity	—	radiant_intensity / wavelength	view
spectral_radiant_power	Real	LMT⁻³	spectral_radiant_flux	—	alias to spectral_radiant_flux	view
speed	Real	LT⁻¹	speed	—	length / time	view
speed_of_light_in_a_medium	Real	LT⁻¹	speed	speed	—	view
speed_of_light_in_vacuum	Real	LT⁻¹	speed	speed	—	view
static_friction	Vector	LMT⁻²	force	force	alias to static_friction_force	view
static_friction_coefficient	Real	—	dimensionless	dimensionless	static_friction_force / force	view
static_friction_factor	Real	—	dimensionless	dimensionless	alias to static_friction_coefficient	view
static_friction_force	Vector	LMT⁻²	force	force	—	view
storage_capacity	Real	—	storage_capacity	dimensionless	—	—
storage_size	Real	—	storage_capacity	dimensionless	alias to storage_capacity	—
strain	Tensor	—	dimensionless	dimensionless	—	view
stress	Tensor	ML⁻¹T⁻²	pressure	pressure	—	view
surface_coefficient_of_heat_transfer	Real	MΘ⁻¹T⁻³	surface_coefficient_of_heat_transfer	—	density_of_heat_flow_rate / thermodynamic_temperature	view
surface_density	Real	ML⁻²	surface_mass_density	—	alias to surface_mass_density	view
surface_density_of_electric_charge	Real	ITL⁻²	surface_density_of_electric_charge	—	electric_charge / area	view
surface_mass_density	Real	ML⁻²	surface_mass_density	—	mass / area	view
surface_tension	Real	MT⁻²	surface_tension	—	force / length	view
susceptance	Real	I²T³L⁻²M⁻¹	admittance	admittance	—	view
thermal_conductance	Real	L²MΘ⁻¹T⁻³	thermal_conductance	—	inverse(thermal_resistance)	view
thermal_conductivity	Real	LMΘ⁻¹T⁻³	thermal_conductivity	—	density_of_heat_flow_rate *(length / thermodynamic_temperature)	view
thermal_diffusivity	Real	L²T⁻¹	thermal_diffusivity	—	thermal_conductivity / (mass_density * specific_heat_capacity_at_constant_pressure)	view
thermal_insulance	Real	ΘT³M⁻¹	thermal_insulance	—	inverse(coefficient_of_heat_transfer)	view
thermal_resistance	Real	ΘT³L⁻²M⁻¹	thermal_resistance	—	thermodynamic_temperature / heat_flow_rate	view
thermodynamic_efficiency	Real	—	dimensionless	dimensionless	work / heat	view
thermodynamic_energy	Real	L²MT⁻²	energy	enthalpy	alias to internal_energy	view
thermodynamic_temperature	Real	Θ	thermodynamic_temperature	—	—	view
thickness	Real	L	length	width	—	view
time	Real	T	duration	—	alias to duration	view
time_constant	Real	T	duration	duration	—	view
torque	Real	L²MT⁻²	moment_of_force	moment_of_force	—	view
total_current	Real	I	electric_current	electric_current	—	view
total_current_density	Vector	IL⁻²	electric_current_density	electric_current_density	—	view
total_magnetic_flux	Real	L²MI⁻¹T⁻²	magnetic_flux	magnetic_flux	—	view
traffic_carried_intensity	Real	A	traffic_intensity	traffic_intensity	—	view
traffic_intensity	Real	A	traffic_intensity	—	—	view
traffic_load	Real	A	traffic_intensity	traffic_intensity	alias to traffic_carried_intensity	view
traffic_offered_intensity	Real	A	traffic_intensity	traffic_intensity	—	view
transfer_rate	Real	T⁻¹	transfer_rate	—	storage_capacity / duration	view
velocity	Vector	LT⁻¹	speed	speed	displacement / duration	view
voltage	Real	L²MI⁻¹T⁻³	electric_potential	electric_potential	—	view
voltage_phasor	Complex	L²MI⁻¹T⁻³	electric_potential	voltage	—	view
volume	Real	L³	volume	—	pow<3>(length)	view
volume_electric_charge	Real	ITL⁻³	electric_charge_density	—	alias to electric_charge_density	view
volume_flow_rate	Real	L³T⁻¹	volume_flow_rate	—	velocity * area	view
volumic_charge	Real	ITL⁻³	electric_charge_density	—	alias to electric_charge_density	view
waiting_probability	Real	—	dimensionless	dimensionless	—	view
wave_impedance_in_vacuum	Complex	L²MI⁻²T⁻³	impedance	impedance	alias to impedance_of_vacuum	view
wave_vector	Vector	L⁻¹	repetency	repetency	—	view
wavelength	Real	L	length	length	—	view
wavenumber	Real	L⁻¹	repetency	—	alias to repetency	view
weight	Vector	LMT⁻²	force	force	mass * acceleration_of_free_fall	view
width	Real	L	length	length	—	view
work	Real	L²MT⁻²	mechanical_work	—	alias to mechanical_work	view