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Converters · Mass

Weight
converter

Kilos to pounds, ounces to grams, stone to everything — pick two units and type. Exact defined factors underneath, quick mental shortcuts explained below.

7 unitsExact factorsNo sign-up
Any unit → any unitexact factors
In kilogramsthe SI base
Stone & poundsthe UK body-weight format

Everything routes through the kilogram

Like the inch, the pound has been exactly defined since 1959: 1 lb = 0.45359237 kg. Sixteen ounces make a pound; fourteen pounds make a stone (the UK's body-weight unit); and "ton" is three different things — the metric tonne (1,000 kg), the US short ton (2,000 lb) and the UK long ton (2,240 lb).

The anchors
1 kg ≈ 2.2046 lb · 1 oz ≈ 28.35 g · 1 st = 14 lb = 6.35 kg
75 kg ≈ 165.3 lb ≈ 11 st 11.3 lb

Quick mental swaps

Kilos to pounds: double it and add 10% (75 → 150 + 15 = 165). Ounces to grams: multiply by 28. Technically these are units of mass, not weight — but on Earth's surface the everyday usage is fine. Baking in cups instead of grams? The cups-to-grams converter handles volume-to-weight, which needs ingredient density.

Common questions

Weight FAQ

About 2.2046 — exactly 1÷0.45359237. The quick mental version: double the kilos and add 10%.

A UK unit of 14 pounds (6.35 kg), used almost exclusively for body weight — 75 kg is 11 st 11 lb. The converter shows this format automatically.

No. The metric tonne is 1,000 kg; the US short ton is 2,000 lb (907 kg); the UK long ton is 2,240 lb. This tool includes the metric tonne and US ton.

28.3495 g exactly (avoirdupois). Kitchen shorthand rounds it to 28.