Convert mass between kilograms, grams, pounds, ounces, and other units.
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Mass is a fundamental physical quantity that determines the inertial and gravitational properties of an object. Weight is the force an object exerts on a support. In everyday life these concepts are often confused, with "weight" used in place of "mass."
Main Mass Measurement Units
- Kilogram (kg) — the SI base unit, standard in science, medicine, and most countries worldwide.
- Gram (g) — 1/1000 of a kilogram. Used for small masses.
- Pound (lb) — the primary unit in the US and the UK. 1 pound = 0.4536 kg.
- Ounce (oz) — 1/16 of a pound ≈ 28.35 g. Common in cooking and retail.
- Metric Ton (t) — 1000 kg. Used in industry and freight transportation.
Common Mass Conversions
- 1 kg = 2.205 lb
- 1 lb = 453.6 g
- 1 oz = 28.35 g
- 1 t = 1000 kg = 2,205 lb