Convert Stone to KG
Convert milligrams, grams, kilograms, tonnes, ounces, pounds, and stone with the exact international pound. The page opens on 1 kg, which is 2.204623 lb.
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Result
About this tool
This page opens the weight converter preset to stone → kilograms. One stone equals 14 avoirdupois pounds, which makes it exactly 6.35029318 kg, so kilograms = stone × 6.35029318. The stone survives mainly in Britain and Ireland as the customary unit for body weight.
Body-weight anchors: 8 stone is 50.8 kg, 10 stone is 63.5 kg, 12 stone is 76.2 kg, and 14 stone is 88.9 kg. Mixed values are common — 11 stone 4 lbs means 11 × 6.35029 + 4 × 0.45359 ≈ 71.7 kg; convert the pounds part separately.
You will want this when reading UK health articles, medical notes or fitness forums, or when a British scale shows stone and your app expects kilograms. Type stone as a decimal number and read kilograms live; the table below lists the usual body-weight range.
Example. The page opens on 1 kg, which prints as 2.204623 lb. The formula line uses one more digit: 1 kg = 2.2046226 lb. 1 lb prints as 0.4535924 kg.
Limit. The pound is exactly 0.45359237 kg. Units are mg, g, kg, t, oz, lb, and stone. No troy ounce. Display keeps at most 7 significant digits.