Dimensional analysis is the practice of checking relations between physical quantities by identifying the
dimensions of the physical quantities. These dimensions are
independent of the numerical multiples and
constants, and all the quantities in the world can be expressed as a function of the fundamental dimensions.
Physical quantities are expressed using dimensions
| Area | L2 (m²) |
| Work | ML²T-2 (J) |
| Density | ML-3 |
| Volume | L³ (m³) |
| Speed | LT-1 (m/s) |
| Acceleration | LT-2 (m/s²) |
| Force | MLT-2 (kgm/s² or N) |
| Pressure | M1LT-2 (kg/(m · s²)) |
| Electromotive force | ML²T-3I-1 (N) |
| Energy | ML2T-2 (kgm²/s² or Joule(J)) |
| Power | ML2T-3 (kgm²/s³ or Watt) |
| Electric Charge | M⁰L⁰TI (Coulomb) |
| Voltage | ML²T-3I-1 (Volt) |
| Resistance | ML²T-3A-2 (Ohms) |
| Frequency | T-1 (s-1 or Hz) |
| Wavelength | L (m) |