Convert stone to kilograms
1 stone equals 6.3503 kilograms. Type any number below — the other side updates instantly.
Stone to kilograms — quick reference
| stone | kilograms |
|---|---|
| 4 st | 25.4012 kg |
| 5 st | 31.7515 kg |
| 6 st | 38.1017 kg |
| 7 st | 44.452 kg |
| 8 st | 50.8023 kg |
| 9 st | 57.1526 kg |
| 10 st | 63.5029 kg |
| 11 st | 69.8532 kg |
| 12 st | 76.2035 kg |
| 13 st | 82.5538 kg |
| 14 st | 88.9041 kg |
| 15 st | 95.2544 kg |
| 16 st | 101.605 kg |
| 17 st | 107.955 kg |
| 18 st | 114.305 kg |
| 20 st | 127.006 kg |
| 25 st | 158.757 kg |
| 30 st | 190.509 kg |
How to convert
Multiply the number of stones by 6.3503 to get kilograms. To go the other way, multiply kilograms by 0.157473 to get stones. The conversion factor is fixed and exact, so you can use this on any value.
About these units
Stone
- Definition
- A stone (symbol: st) equals exactly 14 pounds, or about 6.35 kg. It is a unit of mass used in the UK and Ireland.
- History
- The stone has medieval origins as a measurement standardized at trading posts, with values varying by commodity until the 14-pound standard took hold.
- Current use
- Predominantly used in the UK and Ireland for human body weight. Rare in the US.
Kilograms
- Definition
- A kilogram (symbol: kg) is the SI base unit of mass. Since 2019 it has been defined by fixing the Planck constant.
- History
- The kilogram was originally defined in 1799 as the mass of one liter of water. It was the last SI base unit to be defined by a physical artifact (the IPK in Paris) — replaced by a fundamental-constant definition in 2019.
- Current use
- The kilogram is the standard unit of mass for science, commerce, and everyday use in every country except the United States.
Frequently asked
- How many kilograms are in 1 stone?
- 1 stone = 6.3503 kilograms.
- How do you convert stone to kilograms?
- Multiply the number of stones by 6.3503 to get kilograms. To go the other way, multiply kilograms by 0.157473 to get stones. The conversion factor is fixed and exact, so you can use this on any value.
- What is 13 stone in kilograms?
- 13 stone = 82.5538 kilograms.
Convert stone to other mass units
Convert other mass units to kilograms
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