• Absorbed dose (of ionizing radiation): gray (Gy)
  • Absorbed dose: gray (Gy)
  • Acceleration: meter per second squared (m/s^2)
  • Acceleration: meter per second squared (m/s²)
  • Acceleration: meters per second squared (m·s⁻²)
  • Activity (of a radionuclide): becquerel (Bq)
  • Activity: becquerel (Bq)
  • Activity: becquerel per cubic meter (Bq/m^3)
  • Amount of substance: mole (mol)
  • Angle: radian (rad)
  • Angular acceleration: radian per second squared (rad/s^2)
  • Angular acceleration: radian per second squared (rad/s²)
  • Angular acceleration: radian per second squared (rad·s⁻²)
  • Angular acceleration: radians per second squared (rad·s⁻²)
  • Angular frequency: radian per second (rad/s)
  • Angular momentum: joule second (J·s)
  • angular momentum: kilogram meter squared per second (kg·m^2/s)
  • Angular momentum: kilogram meter squared per second (kg·m²/s)
  • Angular velocity: radian per second (rad/s)
  • Angular velocity: radian per second (rad·s⁻¹)
  • Angular velocity: radians per second (rad·s⁻¹)
  • Angular wave frequency: radian per second (rad/s)
  • Area: square meter (m²)
  • Bulk modulus: pascal (Pa)
  • Bullet Point List All SI Unit Symbols: Terminology and Related Definitions.
  • Capacitance: farad (F)
  • Catalytic activity: katal (kat)
  • Celsius temperature: degree Celsius (°C)
  • Chemical substance: mole (mol)
  • Chromaticity: coordinates on a chromaticity diagram
  • Color rendering index: dimensionless
  • Color temperature: kelvin (K)
  • Crackle: meter per second to the fifth (m/s⁵)
  • Crackle: meter per second to the fifth power (m/s⁵)
  • Data storage: byte (B)
  • Data transfer: bit per second (bps)
  • Density: kilogram per cubic meter (kg/m^3)
  • Density: kilogram per cubic meter (kg/m³)
  • Density: kilogram per cubic meter (kg·m⁻³)
  • Density: kilograms per cubic meter (kg·m⁻³)
  • Displacement: meter (m)
  • Distance: meter (m)
  • Dose equivalent: sievert (Sv)
  • Dynamic viscosity: pascal-second (Pa·s)
  • Elastic modulus: pascal (Pa)
  • Elasticity modulus: pascal (Pa)
  • Electric capacitance: farad (F)
  • Electric charge density: coulomb per cubic meter (C/m^3)
  • Electric charge density: coulomb per cubic meter (C/m³)
  • Electric charge: coulomb (C)
  • Electric conductance: siemens (S)
  • Electric current density divergence: ampere per square meter per meter (A/m^3)
  • Electric current density gradient: ampere per square meter per meter (A/m^3)
  • Electric current density: ampere per square meter (A/m^2)
  • Electric current density: ampere per square meter (A/m²)
  • Electric current: ampere (A)
  • Electric dipole moment: coulomb meter (C·m)
  • Electric displacement field divergence: coulomb per square meter per meter (C/m^3)
  • Electric displacement field gradient: coulomb per square meter per meter (C/m^3)
  • Electric displacement field: coulomb per square meter (C/m^2)
  • Electric energy: joule (J)
  • Electric field strength: volt per meter (V/m)
  • Electric field strength: volt per meter (V·m⁻¹)
  • Electric flux density: coulomb per square meter (C/m^2)
  • Electric flux density: tesla (T)
  • Electric flux density: volt second per meter squared (V·s/m²)
  • Electric flux: weber (Wb)
  • Electric inductance: henry (H)
  • Electric permeability: henry per meter (H/m)
  • Electric permittivity: farad per meter (F/m)
  • Electric polarization: coulomb per square meter (C/m^2)
  • Electric potential difference (voltage): volt (V)
  • Electric potential difference or voltage: volt (V)
  • Electric potential difference: volt (V)
  • Electric potential: volt (V)
  • Electric power: watt (W)
  • Electric resistance: ohm (Ω)
  • Electrical conductivity: siemens per meter (S·m⁻¹)
  • Electrical current: ampere (A)
  • Energy density: joule per cubic meter (J/m^3)
  • Energy: joule (J)
  • Entropy: joule per kelvin (J/K)
  • Entropy: joule per kelvin (J·K⁻¹)
  • Equilibrium constant: dimensionless
  • Equivalent dose (of ionizing radiation): sievert (Sv)
  • Equivalent dose: sievert (Sv)
  • Exposure: coulomb per kilogram (C/kg)
  • Exposure: coulomb per kilogram (C·kg⁻¹)
  • Force density: newton per square meter (N/m^2)
  • Force: newton (N)
  • Frequency: hertz (Hz)
  • Heat capacity: joule per kelvin (J/K)
  • Heat capacity: joule per kelvin (J·K⁻¹)
  • Heat flow rate: watt (W)
  • Heat flux density: watt per square meter (W/m^2)
  • Heat flux density: watt per square meter (W/m²)
  • Heat flux density: watt per square meter (W·m⁻²)
  • Heat transfer coefficient: watt per square meter per kelvin (W/(m^2·K))
  • Heat transfer coefficient: watt per square meter per kelvin (W/m²·K)
  • Heat: joule (J)
  • Illuminance per solid angle: lux (lx)
  • Illuminance: lux (lx)
  • Impulse: newton second (N·s)
  • Inductance: henry (H)
  • Information and data storage: bit (b) and byte (B)
  • Information: bit (b) or byte (B)
  • Irradiance: watt per square meter (W/m^2)
  • Jerk: meter per second cubed (m/s³)
  • Kinematic viscosity: square meter per second (m^2/s)
  • Kinematic viscosity: square meter per second (m²/s)
  • Kinematic viscosity: square meter per second (m²·s⁻¹)
  • Length: meter (m)
  • Light: cand (cd)
  • Luminance per angle: cand (cd)
  • Luminance per area: cand per square meter (cd/m^2)
  • Luminance per solid angle: cand per steradian (cd/sr)
  • Luminance: cand per square meter (cd/m^2)
  • Luminance: cand per square meter (cd/m²)
  • Luminance: cand per square meter (cd·m⁻²)
  • Luminance: cand per square meter per steradian (cd/(m^2·sr))
  • Luminous efficacy per solid angle: lumen per watt per steradian (lm/(W·sr))
  • Luminous efficacy: lumen per watt (lm/W)
  • Luminous efficacy: lumen per watt (lm·W⁻¹)
  • Luminous emittance: cand per square meter (cd/m^2)
  • Luminous emittance: dimensionless
  • Luminous energy density: lumen-second per cubic meter (lm·s/m^3)
  • Luminous energy per area: lumen-second per square meter (lm·s/m^2)
  • Luminous energy: lumen-second (lm·s)
  • Luminous exitance: lumen per square meter (lm/m^2)
  • Luminous exposure per solid angle: lumen-second per square meter per steradian (lm·s/(m^2·sr))
  • Luminous exposure: lumen-second per square meter (lm·s/m^2)
  • Luminous flux per solid angle: lumen (lm)
  • Luminous flux: lumen (lm)
  • Luminous intensity distribution: cand (cd)
  • Luminous intensity per solid angle: cand (cd)
  • Luminous intensity: cand (cd)
  • Luminous reflectance: dimensionless
  • Luminous transmittance: dimensionless
  • Magnetic field energy density: joule per cubic meter (J·m⁻³)
  • Magnetic field gradient: ampere per meter (A/m)
  • Magnetic field gradient: tesla per meter (T/m)
  • Magnetic field intensity: ampere per meter (A/m)
  • Magnetic field strength divergence: tesla per meter (T/m)
  • Magnetic field strength gradient: tesla per meter (T/m)
  • Magnetic field strength: ampere per meter (A/m)
  • Magnetic field strength: ampere per meter (A·m⁻¹)
  • Magnetic field strength: tesla (T)
  • Magnetic flux density: ampere per meter (A·m⁻¹)
  • Magnetic flux density: tesla (T)
  • Magnetic flux: weber (Wb)
  • Magnetic moment: ampere meter² (A·m²)
  • Magnetic permeability: henry per meter (H/m)
  • Magnetic permeability: henry per meter (H·m⁻¹)
  • Magnetic susceptibility: dimensionless
  • Magnetic susceptibility: dimensionless unit
  • Magnetic vector potential: weber per meter (Wb/m)
  • Mass concentration: kilogram per cubic meter (kg/m^3)
  • Mass flow rate: kilogram per second (kg/s)
  • Mass flow rate: kilogram per second (kg·s⁻¹)
  • Mass: kilogram (kg)
  • Molality: mole per kilogram (mol/kg)
  • Molar concentration: mole per cubic meter (mol/m^3)
  • Molar energy: joule per mole (J/mol)
  • Molar enthalpy: joule per mole (J/mol)
  • Molar entropy: joule per mole kelvin (J/(mol·K))
  • Molar entropy: joule per mole per kelvin (J/mol·K)
  • Molar flow rate: mole per second (mol/s)
  • Molar Gibbs energy: joule per mole (J/mol)
  • Molar heat capacity: joule per mole kelvin (J/(mol·K))
  • Molar heat capacity: joule per mole per kelvin (J/mol·K)
  • Molar mass: kilogram per mole (kg/mol)
  • Molar volume: cubic meter per mole (m^3/mol)
  • Molar volume: cubic meter per mole (m³/mol)
  • Molarity: mole per liter (mol/L)
  • Moment of force: newton meter (N·m)
  • Moment of force: newton-meter (N·m)
  • Moment of inertia: kilogram meter squared (kg·m²)
  • Period: second (s)
  • Permeability: henry per meter (H/m)
  • Permeability: henry per meter (H·m⁻¹)
  • Permittivity: farad per meter (F/m)
  • Permittivity: farad per meter (F·m⁻¹)
  • Photometric quantity: lumen (lm)
  • Plane angle: radian (rad)
  • Poisson’s ratio: dimensionless
  • Poisson’s ratio: dimensionless unit
  • Pop: meter per second to the sixth (m/s⁶)
  • Pop: meter per second to the sixth power (m/s⁶)
  • Power density: watt per square meter (W/m^2)
  • Power: watt (W)
  • Pressure or stress: pascal (Pa)
  • Pressure: pascal (Pa)
  • Radiance: watt per square meter per steradian (W/(m^2·sr))
  • Radiance: watt per square meter per steradian (W/m²·sr)
  • Radiance: watt per square meter per steradian (W·m²·sr⁻¹)
  • Radiance: watt per square meter per steradian (W·m⁻²·sr⁻¹)
  • Radiant exitance: watt per square meter (W/m^2)
  • Radiant flux: watt (W)
  • Radiant intensity: watt per steradian (W/sr)
  • Radiant intensity: watt per steradian (W·sr⁻¹)
  • Radioactivity: becquerel (Bq)
  • Radiometric quantity: watt (W)
  • Radionuclide activity: becquerel (Bq)
  • Refractive index: dimensionless
  • Reynolds number: dimensionless
  • Shear modulus: pascal (Pa)
  • SI Unit Symbols Definitions
  • Snap: meter per second to the fourth (m/s⁴)
  • Snap: meter per second to the fourth power (m/s⁴)
  • Solid angle: steradian (sr)
  • Sound impedance: pascal-second per cubic meter (Pa·s/m^3)
  • Sound intensity: watt per square meter (W/m^2)
  • Sound intensity: watt per square meter (W/m²)
  • Sound level: decibel (dB)
  • Sound power level: decibel (dB)
  • Sound power: watt (W)
  • Sound pressure level: decibel (dB)
  • Sound pressure: pascal (Pa)
  • Specific gravity: dimensionless
  • Specific gravity: dimensionless unit
  • Specific heat capacity: joule per kilogram per kelvin (J/kg·K)
  • Specific heat capacity: joule per kilogram per kelvin (J·kg⁻¹·K⁻¹)
  • Specific heat: joule per kilogram per kelvin (J/(kg·K))
  • Specific heat: joule per kilogram per kelvin (J/kg·K)
  • Specific volume: cubic meter per kilogram (m³/kg)
  • Specific weight: newton per cubic meter (N/m^3)
  • Specific weight: newton per cubic meter (N/m³)
  • Speed: meter per second (m/s)
  • Standard state: standard pressure (100 kPa) and standard temperature (273.15 K)
  • Strain: dimensionless
  • Strain: dimensionless (no unit)
  • Strain: dimensionless unit
  • Strain: meter per meter (m/m)
  • Stress: pascal (Pa)
  • Surface heat flux: watt per square meter (W/m^2)
  • Surface tension: newton per meter (N/m)
  • Surface tension: newton per meter (N·m⁻¹)
  • Temperature: kelvin (K)
  • Thermal conductance per unit area: watt per square meter per kelvin (W/(m^2·K))
  • Thermal conductance: watt per kelvin (W/K)
  • Thermal conductivity: watt per meter kelvin (W/(m·K))
  • Thermal conductivity: watt per meter per kelvin (W/(m·K))
  • Thermal conductivity: watt per meter per kelvin (W/m·K)
  • Thermal conductivity: watt per meter per kelvin (W·m⁻¹·K⁻¹)
  • Thermal diffusivity: square meter per second (m^2/s)
  • Thermal energy: joule (J)
  • Thermal expansion coefficient: per kelvin (1/K)
  • Thermal expansion coefficient: per kelvin (K⁻¹)
  • Thermal expansion: meter per meter per kelvin (m/(m·K))
  • Thermal expansion: meter per meter per kelvin (m/m·K)
  • Thermal expansion: per kelvin (1/K)
  • Thermal expansion: per kelvin (K^-1)
  • Thermal resistance per unit area: kelvin per watt per square meter (K/(W·m^2))
  • Thermal resistance: kelvin per watt (K/W)
  • Thermodynamic temperature: kelvin (K)
  • Time: second (s)
  • Torque: newton meter (N·m)
  • Torque: newton-meter (N·m)
  • Velocity: meter per second (m/s)
  • Velocity: meters per second (m·s⁻¹)
  • Viscosity: pascal second (Pa·s)
  • Volume flow rate: cubic meter per second (m^3/s)
  • Volume flow rate: cubic meter per second (m³/s)
  • Volume: cubic meter (m³)
  • Volumetric flow rate: cubic meter per second (m^3/s)
  • Volumetric heat capacity: joule per cubic meter per kelvin (J/(m^3·K))
  • Wave amplitude: dimensionless
  • Wave energy density: joule per cubic meter (J/m^3)
  • Wave frequency: hertz (Hz)
  • Wave intensity: watt per square meter (W/m^2)
  • Wave number: reciprocal meter (m^-1)
  • Wave phase: radian (rad)
  • Wave power: watt (W)
  • Wave velocity: meter per second (m/s)
  • Wavelength: meter (m)
  • Weight density: kilogram per cubic meter (kg/m^3)
  • Weight: newton (N)
  • Weight: newton (N) (on Earth, weight is defined as the force exerted on an object due to gravity)
  • Work or energy: joule (J)
  • Work: joule (J)
  • Young’s modulus: pascal (Pa)