SI Unit Converter - Convert Base & Derived SI Units Easily

Use our SI Unit Converter to convert between SI base units (meter, kilogram, second, ampere, kelvin) and derived units (Newton, Joule, Pascal, Watt). Convert between metric prefixes like kg to g, mm to m, and more. Fast and accurate conversions online!

SI Unit Converter

Enter Value: From: Meter (m) Centimeter (cm) Millimeter (mm) Kilometer (km) Kilogram (kg) Gram (g) Milligram (mg) Second (s) Millisecond (ms) Ampere (A) Milliampere (mA) Kelvin (K) Mole (mol) Candela (cd) Newton (N) Millinewton (mN) Joule (J) Millijoule (mJ) Watt (W) Milliwatt (mW) Kilowatt (kW) Pascal (Pa) Kilopascal (kPa) Coulomb (C) Millicoulomb (mC) Volt (V) Millivolt (mV) Ohm (Ω) Kiloohm (kΩ) To: