MKS Units
| Unit | Symbol | Variable | Symbol | MKSA units |
| Ampere | A | Current | I | fundamental MKSA unit |
| Coulomb | C | Charge | Q | Ampere second |
| Farad | F | Capacitance | C | Coulomb Volt-1 = Joule Volt-2 |
| Henry | H | Inductance | L | Weber Ampere-1 = Tesla meter2 Ampere-1 |
| Joule | J | Energy | E | Newton meter = kilogram meter2 second-2 |
| Kelvin | K | Temperature | T | fundamental MKSA unit |
| kilogram | kg | Mass | m | fundamental MKSA unit |
| meter | m | Length | L | fundamental MKSA unit |
| Newton | N | Force | F | kilogram meter second-2 |
| Ohm | Ω | Resistance | R | Volt Ampere-1 = Volt2 Joule-1 second-1 |
| Pascal | P | Pressure | P | Newton meter-2 |
| second | s | time | t | fundamental MKSA unit |
| Siemens | S | conductance | G | Ampere Volt-1 = Joule second Volt-2 |
| Tesla | T | Magnetic field | B | Newton Ampere-1 meter-1 = Joule Ampere-1 meter-2 = Volt second meter-2 |
| Volt | V | potential | φ | Joule coulomb-1 |
| Watt | W | Power | P | Joule second-1 |
| Weber | Wb | Magnetic flux | Φ | Tesla meter2 = Volt second |
non-MKS Units
Electron Volt (Unit of energy) = 1.602 x 10-19 Joule
moles/liter (Unit of concentration) = 6.022 x 1020 cm-3
Degrees Centigrade (Unit of Temperature) = -273.16 + T(in Kelvin)
Inch (Unit of Length) = 2.54 cm
mil or milli inch (Unit of Length) = 25.4 micrometer
A or Angstrom (Unit of Length) = 0.1 nm