Kilograms, pounds and stone
1 kg = 2.2046 lb · 1 lb = 0.4536 kg · 1 st = 14 lb = 6.35 kg
| kg | lb | st lb |
|---|---|---|
| 50 | 110.2 | 7 st 12 lb |
| 60 | 132.3 | 9 st 6 lb |
| 70 | 154.3 | 11 st 0 lb |
| 80 | 176.4 | 12 st 8 lb |
| 90 | 198.4 | 14 st 2 lb |
Common questions
Why does a stone equal 14 pounds?
That's the traditional British unit, still commonly used for body weight in the UK and Ireland — 14 lb has been the standard definition since it was fixed by statute in the 1800s.
Which is more precise, 2.2046 or a longer decimal?
2.2046 lb per kg is accurate to 5 significant figures — plenty for body weight. The exact value is 2.20462262..., which only matters past the first decimal place for anything a scale would show.
For general information only — not medical advice. Talk to a doctor about anything that concerns you.