Weight Converter
Convert between kilograms, pounds, ounces, stone, grams and tons — with the exact international factors.
Common conversions
| From | To | Factor |
|---|---|---|
| 1 kilogram | pounds | ≈ 2.2046 |
| 1 pound | grams | 453.59237 (exact) |
| 1 ounce | grams | ≈ 28.3495 |
| 1 stone | kilograms | ≈ 6.3503 |
| 1 metric ton | kilograms | 1000 (exact) |
Frequently asked questions
What's the quick trick for kg to lbs?
Double the kilograms and add 10%. For 70 kg: doubled is 140, plus 14 gives 154 lb — the exact answer is 154.3 lb.
What is a stone?
A British unit of body weight equal to 14 pounds (≈ 6.35 kg). "11 stone 4" means 11 stone plus 4 pounds, i.e. 158 lb or about 71.7 kg.
Is this weight or mass?
Technically these are units of mass. In everyday use "weight" means the same thing — this converter uses the standard international definitions, where 1 lb = 0.45359237 kg exactly.
Last updated: 2026-07-13