Mass converter

11 units, SI unit kg. Every conversion runs through the SI base value, so round-trips are exact.

1 lb = 0.454 kg
1 lb in every mass unit
microgram454,000,000 μg
milligram454,000 mg
gram454 g
kilogram0.454 kg
metric tonne0.000454 t
ounce16 oz
pound1 lb
stone0.0714 st
US short ton0.0005 ton
grain7,000 gr
unified atomic mass unit (dalton)2.73e+26 u
One kilogram in every unit
microgram (μg)1,000,000,000 μg
milligram (mg)1,000,000 mg
gram (g)1,000 g
kilogram (kg)1 kg
metric tonne (t)0.001 t
ounce (oz)35.273962 oz
pound (lb)2.2046226 lb
stone (st)0.15747304 st
US short ton (ton)0.0011023113 ton
grain (gr)15,432.358 gr
unified atomic mass unit (dalton) (u)6.0221408e+26 u