Weight tools
Weight and Mass Converter
Convert everyday, scientific, jewelry, shipping, and imperial mass/weight units.
Choose units to see the conversion formula.
Popular weight unit conversions
Complete list of weight units for conversion
| Unit | Symbol | Conversion factor |
|---|---|---|
| kilogram | kg | Base unit: 1 kilogram |
| gram | g | 1 gram [g] = 0.001 kilogram [kg] |
| milligram | mg | 1 milligram [mg] = 0.000001 kilogram [kg] |
| microgram | µg | 1 microgram [µg] = 1.000000000000E-9 kilogram [kg] |
| nanogram | ng | 1 nanogram [ng] = 1.000000000000E-12 kilogram [kg] |
| ton (metric) | t | 1 ton (metric) [t] = 1000 kilogram [kg] |
| pound | lb | 1 pound [lb] = 0.45359237 kilogram [kg] |
| ounce | oz | 1 ounce [oz] = 0.028349523125 kilogram [kg] |
| carat | ct | 1 carat [ct] = 0.0002 kilogram [kg] |
| ton (short US) | ton US | 1 ton (short US) [ton US] = 907.18474 kilogram [kg] |
| ton (long UK) | ton UK | 1 ton (long UK) [ton UK] = 1016.0469088 kilogram [kg] |
| stone | st | 1 stone [st] = 6.35029318 kilogram [kg] |
| grain | gr | 1 grain [gr] = 0.00006479891 kilogram [kg] |
| slug | slug | 1 slug [slug] = 14.59390294 kilogram [kg] |
| dalton | Da | 1 dalton [Da] = 1.660539066600E-27 kilogram [kg] |
| pound (troy) | lb t | 1 pound (troy) [lb t] = 0.3732417216 kilogram [kg] |
| ounce (troy) | oz t | 1 ounce (troy) [oz t] = 0.0311034768 kilogram [kg] |
| pennyweight | dwt | 1 pennyweight [dwt] = 0.00155517384 kilogram [kg] |
| scruple | s.ap | 1 scruple [s.ap] = 0.0012959782 kilogram [kg] |
| quintal (metric) | cwt | 1 quintal (metric) [cwt] = 100 kilogram [kg] |
| hundredweight (US) | cwt US | 1 hundredweight (US) [cwt US] = 45.359237 kilogram [kg] |
| hundredweight (UK) | cwt UK | 1 hundredweight (UK) [cwt UK] = 50.80234544 kilogram [kg] |
| quarter (US) | qr US | 1 quarter (US) [qr US] = 11.33980925 kilogram [kg] |
| quarter (UK) | qr UK | 1 quarter (UK) [qr UK] = 12.70058636 kilogram [kg] |
| gamma | γ | 1 gamma [γ] = 1.000000000000E-9 kilogram [kg] |
| electron mass | me | 1 electron mass [me] = 9.109383701500E-31 kilogram [kg] |
| proton mass | mp | 1 proton mass [mp] = 1.672621923690E-27 kilogram [kg] |
| Earth's mass | M⊕ | 1 Earth's mass [M⊕] = 5.972200000000E+24 kilogram [kg] |
| Sun's mass | M☉ | 1 Sun's mass [M☉] = 1.988470000000E+3 kilogram [kg] |