Stone Conversion Calculator
Enter a value in stones below to convert to another unit of weight.
What is a Stone?
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A stone is a unit used to measure weight.
The stone is an imperial unit of weight. Stones can be abbreviated as st; for example, 1 stone can be written as 1 st.
How Much is a Stone?
One stone is equal to 14 pounds and is mostly used in the United Kingdom and Ireland as a unit of mass. It's most commonly used to measure personal body weight.[1]
How to Convert Stones
To convert stones to another unit of weight, you need to multiply the value by a conversion factor. A conversion factor is a numerical value used to change the units of a measurement without changing the value.[2]
You can find the conversion factors for stones in the conversion table below.
Then, multiply the weight measurement by the conversion factor to find the equivalent value in the desired unit of measurement.
stones × conversion factor = result
You can also use a calculator, such as one of the converters below, for the conversion.
Stone Conversion Table
| stones | pounds | kilograms | calories |
|---|---|---|---|
| 1 st | 14 lb | 6.350293 kg | 49,000 kcal |
| 2 st | 28 lb | 12.700586 kg | 98,000 kcal |
| 3 st | 42 lb | 19.05088 kg | 147,000 kcal |
| 4 st | 56 lb | 25.401173 kg | 196,000 kcal |
| 5 st | 70 lb | 31.751466 kg | 245,000 kcal |
| 6 st | 84 lb | 38.101759 kg | 294,000 kcal |
| 7 st | 98 lb | 44.452052 kg | 343,000 kcal |
| 8 st | 112 lb | 50.802345 kg | 392,000 kcal |
| 9 st | 126 lb | 57.152639 kg | 441,000 kcal |
| 10 st | 140 lb | 63.502932 kg | 490,000 kcal |
| 11 st | 154 lb | 69.853225 kg | 539,000 kcal |
| 12 st | 168 lb | 76.203518 kg | 588,000 kcal |
| 13 st | 182 lb | 82.553811 kg | 637,000 kcal |
| 14 st | 196 lb | 88.904105 kg | 686,000 kcal |
| 15 st | 210 lb | 95.254398 kg | 735,000 kcal |
| 16 st | 224 lb | 101.604691 kg | 784,000 kcal |
| 17 st | 238 lb | 107.954984 kg | 833,000 kcal |
| 18 st | 252 lb | 114.305277 kg | 882,000 kcal |
| 19 st | 266 lb | 120.65557 kg | 931,000 kcal |
| 20 st | 280 lb | 127.005864 kg | 980,000 kcal |
Stone Conversion Calculators
You can also convert weight using one of our stone converters below.
References
- National Institute of Standards and Technology, Handbook 44 - 2012 - Appendix B, https://www.nist.gov/system/files/documents/2017/04/28/AppB-12-hb44-final.pdf
- National Institute of Standards & Technology, Unit Conversion, https://www.nist.gov/pml/owm/metric-si/unit-conversion