 List of Physical Quantities
A physical quantity is a physical property of a phenomenon, object, or substance that can be measured. This list contains two tables. First table lists the fundamental or base quantities defined in SI system, whereas second table lists the physical quantities which can be expressed in terms of base quantities.

Base quantitySymbolSI unitDimension
Lengthlmetre (m)L
Massmkilogram (kg)M
Timetsecond (s)T
Electric currentIampere (A)I
TemperatureTkelvin (K)Θ
Amount of substancenmole (mol)N
Luminous intensityLcandela (cd)J

Derived quantity Symbol SI unit Dimension Acceleration a m s-2 L T−2 Angular acceleration α rad s-2 T-2 Angular momentum L kg m2 s-1 M L2 T-1 Angular speed (or angular velocity) ω rad s-1 T-1 Area A m2 L2 Area density ρA kg m-2 M L-2 Capacitance C farad (F = A2 s4 kg-1 m−2) M-1 L-2 T4 I2 Catalytic activity katal (kat = mol s-1) T-1 N Chemical potential μ J mol-1 M L2 T-2 N-1 Current density J → A m−2 L-2 I Dynamic viscosity η Pa s M L-1 T-1 Electric charge Q coulomb (C = A s) T I Electric displacement D C m−2 L-2 T I Electric field strength E→ V m-1 M L T-3 I-1 Electrical conductance G siemens (S = A2 s3 kg-1 m−2) M-1 L−2 T3 I2 Electrical conductivity σ S m-1 M-1 L-3 T3 I2 Electric potential V volt (V = kg M2 A-1 s-3) M L2 T-3 I-1 Electrical resistance R ohm (Ω = kg M2 A-2 s-3) M L2 T-3 I-2 Electrical resistivity ρ ohm metre (Ω⋅m = kg M3 A-2 s-3) M L3 T-3 I-2 Energy E joule (J = kg m2 s-2) M L2 T-2 Energy density ρE J m-3 M L-1 T-2 Entropy S J K-1 M L2 T-2 Θ-1 Force F→ newton (N = kg m s−2) M L T-2 Frequency f hertz (Hz = s-1) T-1 Fuel efficiency L−2 Half-life t1/2 s T Heat Q joule (J) M L2 T-2 Heat capacity Cp J K-1 M L2 T-2 Θ-1 Heat flux density ϕQ W m−2 M T-3 Illuminance Ev lux (lx = cd sr m-2) L−2 J Impedance Z ohm (Ω = kg M2 A-2 s-3) M L2 T-3 I-2 Impulse J newton second (N⋅s = kg m s-1) M L T-1 Inductance L henry (H = kg M2 A-2 s−2) M L2 T-2 I-2 Irradiance E W m-2 M T-3 Intensity I W m-2 M T-3 Jerk j→ m s-3 L T-3 Luminous flux (or luminous power) F lumen (lm = cd sr) J Mach number (or mach) M unitless 1 Magnetic field strength H A m-1 L-1 I Magnetic flux Φ weber (Wb = kg M2 A-1 s−2) M L2 T-2 I-1 Magnetic flux density B tesla (T = kg A-1 s−2) M T-2 I-1 Magnetization M A m-1 L-1 I Mass fraction x kg/kg 1 (Mass) Density (or volume density) ρ kg m-3 M L-3 Mean lifetime τ s T Molar concentration C mol m-3 L-3 N Molar energy J mol-1 M L2 T-2 N-1 Molar entropy J K-1 mol-1 M L2 T-2 Θ-1 N-1 Molar heat capacity c J K-1 mol-1 M L2 T-2 Θ-1 N-1 Moment of inertia I kg m2 M L2 Momentum p→ N s M L T-1 Permeability μ H m-1 M L T-2 I-2 Permittivity ε F m-1 M-1 L-3 T4 I2 Plane angle θ radian (rad) 1 Power P watt (W) M L2 T-3 Pressure p pascal (Pa = kg m-1 s−2) M L-1 T-2 (Radioactive) Activity A becquerel (Bq = s-1) T-1 Radiance ys W m−2 sr-1 M T-3 Refractive index n unitless 1 Solid angle Ω steradian (sr) 1 Speed v m s-1 L T-1 Specific energy J kg-1 L2 T-2 Specific heat capacity c J kg-1 K-1 L2 T-2 Θ-1 Specific volume v M3 kg-1 M-1 L3 Strain ε unitless 1 Stress σ Pa M L-1 T-2 Surface tension γ N m-1 or J m−2 M T-2 Thermal conductivity k W m-1 K-1 M L T-3 Θ-1 Torque τ newton metre (N m) M L2 T-2 Velocity v→ m s-1 L T-1 Volume V m3 L3 Wavelength λ m L Wavenumber k m-1 L-1 Weight w newton (N = kg m s−2) M L T-2 Work W joule (J = kg M2 s−2) M L-22 T-2 Young's modulus E pascal (Pa = kg m-1 s−2) M L-1 T-2 Thermal conductivity k W m-1 K-1 M L T-3 Θ-1 Torque τ newton metre (N m) M L2 T-2 Velocity v→ m s-1 L T-1 Volume V m3 L3 Wavelength λ m L Wavenumber k m-1 L-1 Wavevector k→ m-1 with direction L-1 Weight w newton (N = kg m s−2) M L T-2 Work W joule (J = kg M2 s-2) M L2 T-2 Young's modulus E pascal (Pa = kg m-1 s−2) M L-1 T-2