Convert Stone to Kilograms
One stone equals 6.350293 kilograms. Type any value to convert stone to kilograms instantly — with a full reference table below.
Convert Stone to Kilograms
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How to convert Stone to Kilograms
To convert stone to kilograms, multiply by 6.350293. One stone equals 6.350293 kg, and one kilogram equals 0.157473 st.
- Take the value in stone — for example 7.5 st.
- Multiply by 6.350293 (the number of kilograms in one stone).
- 7.5 × 6.350293 = 47.6272 kg.
Quick mental estimate: Multiply the number of stone by 6.4 (within 0.8% of the exact answer).
Stone to Kilograms conversion table
| Stone | Kilograms |
|---|---|
| 1 st | 6.350293 kg |
| 2 st | 12.70059 kg |
| 3 st | 19.05088 kg |
| 4 st | 25.40117 kg |
| 5 st | 31.75147 kg |
| 6 st | 38.10176 kg |
| 7 st | 44.45205 kg |
| 8 st | 50.80235 kg |
| 9 st | 57.15264 kg |
| 10 st | 63.50293 kg |
| 12 st | 76.20352 kg |
| 15 st | 95.2544 kg |
| 20 st | 127.0059 kg |
| 25 st | 158.7573 kg |
| 50 st | 317.5147 kg |
| 100 st | 635.0293 kg |
| Kilograms | Stone |
|---|---|
| 1 kg | 0.157473 st |
| 2 kg | 0.314946 st |
| 3 kg | 0.472419 st |
| 4 kg | 0.629892 st |
| 5 kg | 0.787365 st |
| 6 kg | 0.944838 st |
| 7 kg | 1.102311 st |
| 8 kg | 1.259784 st |
| 9 kg | 1.417257 st |
| 10 kg | 1.57473 st |
| 12 kg | 1.889677 st |
| 15 kg | 2.362096 st |
| 20 kg | 3.149461 st |
| 25 kg | 3.936826 st |
| 50 kg | 7.873652 st |
| 100 kg | 15.7473 st |
About converting Stone to Kilograms
Stone (st) and Kilograms (kg) are both units of weight. The exact factor is 1 st = 6.350293 kg, so multiply by 6.350293 to go from stone to kilograms (or divide to go back).
The conversion runs entirely in your browser. Need the reverse? Use the Kilograms to Stone converter, or the full unit converter for every unit at once.
Real-world weight in stone and kilograms
| Example | Stone | Kilograms |
|---|---|---|
| 1 litre of water | ≈ 0.157473 st | ≈ 1 kg |
| An Olympic men's barbell | 3.149461 st | 20 kg |
| A typical checked-bag limit (economy) | ≈ 3.62188 st | ≈ 23 kg |
| A typical family car | ≈ 236.2096 st | ≈ 1,500 kg |
“≈” marks typical values; the rest are defined or measured figures.
The units
14 pounds, exactly 6.35029318 kg.
Used for: Body weight in the UK and Ireland.
The SI base unit of mass, defined since 2019 by fixing the Planck constant at 6.62607015 × 10⁻³⁴ J·s.
Used for: Body weight and goods almost everywhere.
These factors are exact: since 1959 the avoirdupois pound is defined as exactly 0.45359237 kg, and the ounce as 1/16 of that.