Mass Converter

Convert between different units of mass and weight

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✨ Mass Converter

Convert between different units of mass and weight. No data leaves your browser – every conversion happens locally.

Common weight conversions

1 kg

= 2.205 lbs

1 lb

= 453.6 g

1 stone

= 6.35 kg

1 oz

= 28.35 g

100 lbs

= 45.36 kg

70 kg

= 154.3 lbs

Good to know

Stone is a UK thing. Stone (14 lbs) is used for body weight in the UK and Ireland but almost nowhere else. 11 stone = 154 lbs = 69.85 kg.

Metric tons vs short tons. A metric ton (tonne) is 1,000 kg = 2,205 lbs. A US short ton is 2,000 lbs = 907 kg. They're not the same — context matters.

Frequently asked questions

2.20462 lbs. For a quick mental estimate, multiply kg by 2.2.

Mass (kg, lbs) measures the amount of matter. Weight is a force (Newtons) that depends on gravity. In everyday use they're treated the same — this converter handles the everyday meaning.

28.3495 g. For cooking, 28 g per oz is close enough for most recipes.

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