Kilograms to stone (kg to st)
Type a value in kilograms and get the result in stone instantly — with the exact factor, a step-by-step formula and a table of common values.
Sources: NIST — Guide to the SI, Appendix B.9 (conversion factors by kind of quantity: mass)
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How to convert kilograms to stone
To convert kilograms to stone, multiply the value by 0.157473.
Example: 70 kg × 0.157473 = 11.0231 st.
Kilograms to stone conversion table
| Kilograms (kg) | Stone (st) |
|---|---|
| 40 | 6.29892 |
| 50 | 7.87365 |
| 60 | 9.44838 |
| 65 | 10.2357 |
| 70 | 11.0231 |
| 75 | 11.8105 |
| 80 | 12.5978 |
| 90 | 14.1726 |
| 100 | 15.7473 |
| 120 | 18.8968 |
| 150 | 23.621 |
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Frequently asked questions
How many stone is 70 kg?
70 kg is 11.0231 stone. That works out to 11 stone and about 0.3 of a stone, or roughly 11 stone 4-5 pounds, since 1 stone is 14 pounds.
Why does the UK use stone instead of kilograms for body weight?
Stone predates the metric system and stuck around specifically for body weight even after the UK adopted metric units for most other measurements. It’s defined as exactly 14 pounds (6.35029318 kg), a legacy of British imperial weights formalized in the Weights and Measures Act 1985.