Weight Conversions

Ounces, pounds, grams, kilograms, stone and tons. Weight units are the same in the US and the UK, and the pound is defined as exactly 0.45359237 kilograms.

Popular exact amounts

Units explained

Weight Converter - Oz, Lb, Grams, Kg and Stone — Each weight unit in the next one and in metric: 1 lb = 16 oz = 453.6 g, 1 kg = 2.205 lb, 1 stone = 14 lb.

Sources: Unit definitions: NIST Handbook 44 · Last reviewed Sep 27, 2026 · Report an error