Weight Converter

Multiply the kg value by 2.20462. Example: 70 kg ≈ 154.32 lb. This is the most common global conversion, used for body weight, gym tracking, and international product specifications.

150 lb ≈ 68.04 kg (150 × 0.453592). This conversion is widely used when comparing body weight between the USA (lb) and metric countries (kg).

Scientifically, mass is the amount of matter in an object (kg), while weight is the gravitational force on that mass (newtons). In everyday use — and on this converter — 'weight' means mass, the same way a bathroom scale reads it.

Conversion factors between metric and imperial mass units are exact by definition (1 kg = 2.20462262185 lbs exactly), so results are limited only by the decimal precision you choose. Any real-world measurement error comes from the scale or device used, not from the conversion itself.

Stone is an imperial unit used mainly in the UK and Ireland for body weight; 1 stone = 14 pounds = 6.35029 kg. Example: 10 st ≈ 63.5 kg. If you have a stone-and-pounds figure (e.g. 11 st 4 lb), convert the total to pounds first, then to kg.