List of physical quantities

|+Fundamental quantities

| style="text-align: center" | l

|The one-dimensional extent of an object

|metre (m)

| style="text-align: center" | L

| extensive

| style="text-align: center" | m

| A measure of resistance to acceleration

|kilogram (kg)

| style="text-align: center" | M

|extensive, scalar

| style="text-align: center" | t

|The duration of an event

|second (s)

| style="text-align: center" | T

|scalar, intensive, extensive

| style="text-align: center" | I

|Rate of flow of electrical charge per unit time

|ampere (A)

| style="text-align: center" | I

|extensive, scalar

| style="text-align: center" | T

|Average kinetic energy per degree of freedom of a system

|kelvin (K)

| style="text-align: center" | Θ

|intensive, scalar

| style="text-align: center" | n

|The quantity proportional to the number of particles in a sample, with the Avogadro constant as the proportionality constant

|mole (mol)

| style="text-align: center" | N

|extensive, scalar

| style="text-align: center" | I_v

|Wavelength-weighted power of emitted light per unit solid angle

|candela (cd)

| style="text-align: center" | J

|scalar

|+Scalar quantities

| style="text-align: center" | D

|Absorbed dose received per unit of time

|Gy/s

| style="text-align: center" | L² T⁻³

|

| style="text-align: center" | S

|Momentum of particle multiplied by distance travelled

| J/Hz

| style="text-align: center" | L² M T⁻¹

|scalar

| style="text-align: center" | ω_a

|Change in angular velocity per unit time

| rad/s²

| style="text-align: center" | T⁻²

|

| style="text-align: center" | A

|Extent of a surface

| m²

| style="text-align: center" | L²

|extensive, bivector or scalar

| style="text-align: center" | ρ_A

|Mass per unit area

| kg⋅m⁻²

| style="text-align: center" | L⁻² M

|intensive

| style="text-align: center" | C

|Stored charge per unit electric potential

| farad (F = C/V)

| style="text-align: center" | L⁻² M⁻¹ T⁴ I²

|scalar

|

|Change in reaction rate due to presence of a catalyst per unit volume of the system

| kat⋅m⁻³

| style="text-align: center" | L⁻³ T⁻¹ N

|intensive

| style="text-align: center" | μ

|Energy per unit change in amount of substance

| J/mol

| style="text-align: center" | L² M T⁻² N⁻¹

|intensive

| style="text-align: center" | H

|Received radiation adjusted for the effect on biological tissue

| sievert (Sv = J/kg)

| style="text-align: center" | L² T⁻²

|intensive

| style="text-align: center" | Q

|The force per unit electric field strength

| coulomb (C = A⋅s)

| style="text-align: center" | T I

|extensive, conserved

| style="text-align: center" | ρ_Q

|Electric charge per unit volume

| C/m³

| style="text-align: center" | L⁻³ T I

|intensive

| style="text-align: center" | G

|Measure for how easily current flows through a material

| siemens (S = Ω⁻¹)

| style="text-align: center" | L⁻² M⁻¹ T³ I²

|scalar

| style="text-align: center" | σ

|Measure of a material's ability to conduct an electric current

| S/m

| style="text-align: center" | L⁻³ M⁻¹ T³ I²

|scalar

| style="text-align: center" | φ

|Energy required to move a unit charge through an electric field from a reference point

| volt (V = J/C)

| style="text-align: center" | L² M T⁻³ I⁻¹

|extensive, scalar

| style="text-align: center" | R

|Electric potential per unit electric current

| ohm (Ω = V/A)

| style="text-align: center" | L² M T⁻³ I⁻²

|extensive, scalar, assumes linearity

| style="text-align: center" | ρ_e

|Bulk property equivalent of electrical resistance

| ohm-metre (Ω⋅m)

| style="text-align: center" | L³ M T⁻³ I⁻²

|extensive, scalar, conserved

| style="text-align: center" | E

|Energy

| joule (J)

| style="text-align: center" | L² M T⁻²

|

| style="text-align: center" | ?

|Energy per volume

| J⋅m⁻³

| style="text-align: center" | L⁻¹ M T⁻²

|intensive

| style="text-align: center" | S

|Logarithmic measure of the number of available states of a system

| J/K

| style="text-align: center" | L² M T⁻² Θ⁻¹

|extensive, scalar

| style="text-align: center" | {{vec|{{math|F}}}}

|Transfer of momentum per unit time

| newton (N = kg⋅m⋅s⁻²)

| style="text-align: center" | L M T⁻²

|extensive, vector

| style="text-align: center" | f

|Number of (periodic) occurrences per unit time

| hertz (Hz = s⁻¹)

| style="text-align: center" | T⁻¹

|scalar

| style="text-align: center" | t_1/2

|Time for a quantity to decay to half its initial value

| s

| style="text-align: center" | T

|

| style="text-align: center" | Q

|Thermal energy

| joule (J)

| style="text-align: center" | L² M T⁻²

|

| style="text-align: center" | C_p

|Energy per unit temperature change

| J/K

| style="text-align: center" | L² M T⁻² Θ⁻¹

|extensive

| style="text-align: center" | ϕ_Q

|Heat flow per unit time per unit surface area

| W/m²

| style="text-align: center" | M T⁻³

|

| style="text-align: center" | E_v

|Wavelength-weighted luminous flux per unit surface area

| lux (lx = cd⋅sr/m²)

| style="text-align: center" | L⁻² J

|

| style="text-align: center" | Z

|Resistance to an alternating current of a given frequency, including effect on phase

| ohm (Ω)

| style="text-align: center" | L² M T⁻³ I⁻²

|complex scalar

| style="text-align: center" | L

|Magnetic flux generated per unit current through a circuit

| henry (H)

| style="text-align: center" | L² M T⁻² I⁻²

|scalar

| style="text-align: center" | E

|Electromagnetic radiation power per unit surface area

| W/m²

| style="text-align: center" | M T⁻³

|intensive

| style="text-align: center" | I

|Power per unit cross sectional area

| W/m²

| style="text-align: center" | M T⁻³

|intensive

| style="text-align: center" | ρ_l

|Mass per unit length

| kg⋅m⁻¹

| style="text-align: center" | L⁻¹ M

|

| style="text-align: center" | F

|Perceived power of a light source

| lumen (lm = cd⋅sr)

| style="text-align: center" | J

|

| style="text-align: center" | M

|Ratio of flow velocity to the local speed of sound

| unitless

| style="text-align: center" | 1

|

| style="text-align: center" | Φ

|Measure of magnetism, taking account of the strength and the extent of a magnetic field

| weber (Wb)

| style="text-align: center" | L² M T⁻² I⁻¹

|scalar

| style="text-align: center" | x

|Mass of a substance as a fraction of the total mass

| kg/kg

| style="text-align: center" | 1

|intensive

| style="text-align: center" | ρ

|Mass per unit volume

| kg/m³

| style="text-align: center" | L⁻³ M

|intensive

| style="text-align: center" | τ

|Average time for a particle of a substance to decay

| s

| style="text-align: center" | T

|intensive

| style="text-align: center" | C

|Amount of substance per unit volume

| mol⋅m⁻³

| style="text-align: center" | L⁻³ N

|intensive

| style="text-align: center" | J/mol

|Amount of energy present in a system per unit amount of substance

| J/mol

| style="text-align: center" | L² M T⁻² N⁻¹

|intensive

| style="text-align: center" | S°

|Entropy per unit amount of substance

| J/(K⋅mol)

| style="text-align: center" | L² M T⁻² Θ⁻¹ N⁻¹

|intensive

| style="text-align: center" | c

|Heat capacity of a material per unit amount of substance

| J/(K⋅mol)

| style="text-align: center" | L² M T⁻² Θ⁻¹ N⁻¹

|intensive

| style="text-align: center" | I

|Inertia of an object with respect to angular acceleration

| kg⋅m²

| style="text-align: center" | L² M

|extensive, tensor, scalar

| style="text-align: center" | P

|Measure of the effective curvature of a lens or curved mirror; inverse of focal length

|dioptre (dpt = m⁻¹)

| style="text-align: center" | L⁻¹

|

| style="text-align: center" | μ_s

|Measure for how the magnetization of material is affected by the application of an external magnetic field

| H/m

| style="text-align: center" | L M T⁻² I⁻²

|intensive

| style="text-align: center" | ε_s

|Measure for how the polarization of a material is affected by the application of an external electric field

| F/m

| style="text-align: center" | L⁻³ M⁻¹ T⁴ I²

|intensive

| style="text-align: center" | θ

|Ratio of circular arc length to radius

| radian (rad)

| style="text-align: center" | 1

|

| style="text-align: center" | P

|Rate of transfer of energy per unit time

| watt (W)

| style="text-align: center" | L² MT⁻³

|extensive, scalar

| style="text-align: center" | p

|Force per unit area

| pascal (Pa = N/m²)

| style="text-align: center" | L⁻¹ MT⁻²

|intensive, scalar

| style="text-align: center" | A

|Number of particles decaying per unit time

| becquerel (Bq = Hz)

| style="text-align: center" | T⁻¹

|extensive, scalar

| style="text-align: center" | D

|Ionizing radiation energy absorbed per unit mass

| gray (Gy = J/kg)

| style="text-align: center" | L² T⁻²

|

| style="text-align: center" | L

|Power of emitted electromagnetic radiation per unit solid angle per emitting source area

| W/(m²⋅sr)

| style="text-align: center" | M T⁻³

|

| style="text-align: center" | I

|Power of emitted electromagnetic radiation per unit solid angle

| W/sr

| style="text-align: center" | L² M T⁻³

|scalar

| style="text-align: center" | r

|Rate of a chemical reaction for unit time

| mol/(m³⋅s)

| style="text-align: center" | L⁻³ T⁻¹ N

|intensive, scalar

| style="text-align: center" | n

|Factor by which the phase velocity of light is reduced in a medium

| unitless

| style="text-align: center" | 1

|intensive, scalar

| style="text-align: center" | $\backslash mathcal\{R\}$

| resistance to the flow of magnetic flux

| H⁻¹

| style="text-align: center" | L⁻² M⁻¹ T² I²

| scalar

| style="text-align: center" | Ω

|Ratio of area on a sphere to its radius squared

| steradian (sr)

| style="text-align: center" | ∠²

|

| style="text-align: center" | $e$

|Energy density per unit mass

| J⋅kg⁻¹

| style="text-align: center" | L² T⁻²

|intensive

| style="text-align: center" | c

|Heat capacity per unit mass

| J/(K⋅kg)

| style="text-align: center" | L² T⁻² Θ⁻¹

|intensive

| style="text-align: center" | v

|Volume per unit mass (reciprocal of density)

| m³⋅kg⁻¹

| style="text-align: center" | L³ M⁻¹

|intensive

| style="text-align: center" | S

|Quantum-mechanically defined angular momentum of a particle

| kg⋅m²⋅s⁻¹

| style="text-align: center" | L² M T⁻¹

|

| style="text-align: center" | ε

|Extension per unit length

|unitless

| style="text-align: center" | 1

|

| style="text-align: center" | σ

|Force per unit oriented surface area

| Pa

| style="text-align: center" | L⁻¹ M T⁻²

|order 2 tensor

| style="text-align: center" | γ

|Energy change per unit change in surface area

| N/m or J/m²

| style="text-align: center" | M T⁻²

|

| style="text-align: center" | κ (or) λ

| Measure for the ease with which an object conducts heat

| W/K

| style="text-align: center" | L² M T⁻³ Θ⁻¹

|extensive

| style="text-align: center" | λ

|Measure for the ease with which a material conducts heat

| W/(m⋅K)

| style="text-align: center" | L M T⁻³ Θ⁻¹

|intensive

| style="text-align: center" | R

| Measure for the ease with which an object resists conduction of heat

| K/W

| style="text-align: center" | L⁻² M⁻¹ T³ Θ

|extensive

| style="text-align: center" | R_λ

| Measure for the ease with which a material resists conduction of heat

| K⋅m/W

| style="text-align: center" | L⁻¹ M⁻¹ T³ Θ

|intensive

| style="text-align: center" | η

|The measure of the internal friction in a fluid

| Pa⋅s

| style="text-align: center" | L⁻¹ M T⁻¹

|intensive, scalar

| style="text-align: center" | V

|Three dimensional extent of an object

| m³

| style="text-align: center" | L³

|extensive, scalar

| style="text-align: center" | Q

|Rate of change of volume with respect to time

| m³⋅s⁻¹

| style="text-align: center" | L³ T⁻¹

|extensive, scalar

| style="text-align: center" | λ

|Perpendicular distance between repeating units of a wave

| m

| style="text-align: center" | L

|

| style="text-align: center" | k

|Repetency or spatial frequency: the number of cycles per unit distance

| m⁻¹

| style="text-align: center" | L⁻¹

|scalar

| style="text-align: center" | W

|Transferred energy

| joule (J)

| style="text-align: center" | L² M T⁻²

|scalar

| style="text-align: center" | E

|Ratio of stress to strain

| pascal (Pa = N/m²)

| style="text-align: center" | L⁻¹ M T⁻²

|scalar; assumes isotropic linear material

| style="text-align: center" | k

|k is the torsional constant (measured in N·m/radian), which characterizes the stiffness of the torsional spring or the resistance to angular displacement.

|N/m

|M T⁻²

|scalar

|+Vector quantities

| style="text-align: center" | A

|Measure of sustained displacement: the first integral with respect to time of displacement

| m⋅s

| style="text-align: center" | L T

|vector

| style="text-align: center" | {{vec|{{math|a}}}}

|Rate of change of velocity per unit time: the second time derivative of position

| m/s²

| style="text-align: center" | L T⁻²

|vector

| style="text-align: center" | ω_a

|Change in angular velocity per unit time

| rad/s²

| style="text-align: center" | T⁻²

|pseudovector

| style="text-align: center" | L

|Measure of the extent and direction an object rotates about a reference point

| kg⋅m²/s

| style="text-align: center" | L² M T⁻¹

|conserved, bivector

| style="text-align: center" | ω

|The angle incremented in a plane by a segment connecting an object and a reference point per unit time

| rad/s

| style="text-align: center" | T⁻¹

|bivector

| style="text-align: center" | A

|Extent of a surface

| m²

| style="text-align: center" | L²

|extensive, bivector or scalar

| style="text-align: center" | F_c

|Inertial force that appears to act on all objects when viewed in a rotating frame of reference

| N⋅rad = kg⋅m⋅rad⋅s⁻²

| style="text-align: center" | L M T⁻²

|bivector

| style="text-align: center" | {{vec|{{math|c}}}}

|Change of jounce per unit time: the fifth time derivative of position

| m/s⁵

| style="text-align: center" | L T⁻⁵

|vector

| style="text-align: center" | {{math|{{vec|J }}}}

|Electric current per unit cross-section area

| A/m²

| style="text-align: center" | L⁻² I

|conserved, intensive, vector

| style="text-align: center" | p

|Measure of the separation of equal and opposite electric charges

| C⋅m

| style="text-align: center" | L T I

|vector

| style="text-align: center" | {{math|{{vec|D}}}}

|Strength of the electric displacement

| C/m²

| style="text-align: center" | L⁻² T I

|vector field

| style="text-align: center" | {{math|{{vec|E}}}}

|Strength of the electric field

| V/m, N/C

| style="text-align: center" | L M T⁻³ I⁻¹

|vector field

| style="text-align: center" | {{vec|{{math|F}}}}

|Transfer of momentum per unit time

| newton (N = kg⋅m⋅s⁻²)

| style="text-align: center" | L M T⁻²

|extensive, vector

| style="text-align: center" | J

|Transferred momentum

| newton-second (N⋅s = kg⋅m/s)

| style="text-align: center" | L M T⁻¹

|vector

| style="text-align: center" | {{vec|{{math|j}}}}

|Change of acceleration per unit time: the third time derivative of position

| m/s³

| style="text-align: center" | L T⁻³

|vector

| style="text-align: center" | {{vec|{{math|s}}}}

|Change of jerk per unit time: the fourth time derivative of position

| m/s⁴

| style="text-align: center" | L T⁻⁴

|vector

| style="text-align: center" | H

|Strength of a magnetic field

| A/m

| style="text-align: center" | L⁻¹ I

|vector field

| style="text-align: center" | B

|Measure for the strength of the magnetic field

| tesla (T = Wb/m²)

| style="text-align: center" | M T⁻² I⁻¹

|pseudovector field

| style="text-align: center" | m

|The component of magnetic strength and orientation that can be represented by an equivalent magnetic dipole

| N⋅m/T

| style="text-align: center" | L² I

|vector

| style="text-align: center" | M

|Amount of magnetic moment per unit volume

| A/m

| style="text-align: center" | L⁻¹ I

|vector field

| style="text-align: center" | {{vec|{{math|p}}}}

|Product of an object's mass and velocity

| kg⋅m/s

| style="text-align: center" | L M T⁻¹

|vector, extensive

| style="text-align: center" | {{vec|{{math|p}}}}

|Rate of change of crackle per unit time: the sixth time derivative of position

| m/s⁶

| style="text-align: center" | L T⁻⁶

|vector

| style="text-align: center" | $\backslash nabla\; p$

|Pressure per unit distance

| pascal/m

| style="text-align: center" | L⁻² M¹ T⁻²

|vector

| style="text-align: center" | $\backslash nabla\; T$

| steepest rate of temperature change at a particular location

| K/m

| style="text-align: center" | L⁻¹ Θ

| vector

| style="text-align: center" | τ

|Product of a force and the perpendicular distance of the force from the point about which it is exerted

| newton-metre (N⋅m)

| style="text-align: center" | L² M T⁻²

|bivector (or pseudovector in 3D)

| style="text-align: center" | {{vec|{{math|v}}}}

|Moved distance per unit time: the first time derivative of position

| m/s

| style="text-align: center" | L T⁻¹

|vector

| style="text-align: center" | {{math|{{vec|k}}}}

|Repetency or spatial frequency vector: the number of cycles per unit distance

| m⁻¹

| style="text-align: center" | L⁻¹

|vector

| style="text-align: center" | w

|Gravitational force on an object

| newton (N = kg⋅m/s²)

| style="text-align: center" | L M T⁻²

|vector

|+Tensor quantities

| style="text-align: center" | I

|Inertia of an object with respect to angular acceleration

| kg⋅m²

| style="text-align: center" | L² M

|extensive, tensor, scalar

| style="text-align: center" | σ

|Force per unit oriented surface area

| Pa

| style="text-align: center" | L⁻¹ M T⁻²

| order 2 tensor

| style="text-align:center;" | χ

| Polarization density per unit electric field

| 1

| style="text-align:center;" | 1

| tensor, scalar