📏 Stone to Kilograms Converter
Convert stone (st) to kilograms (kg) instantly, with the formula, a worked example and a conversion table.
Quick answer: 1 stone (st) = 6.3502932 kilograms (kg). Formula: kg = st × 6.3502932.
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Stone to Kilograms Converter inputs
Result
Stone to Kilograms conversion table
| Stone (st) | Kilograms (kg) |
|---|---|
| 0.1 st | 0.63502932 kg |
| 0.5 st | 3.1751466 kg |
| 1 st | 6.3502932 kg |
| 2 st | 12.700586 kg |
| 3 st | 19.05088 kg |
| 5 st | 31.751466 kg |
| 10 st | 63.502932 kg |
| 20 st | 127.00586 kg |
| 25 st | 158.75733 kg |
| 50 st | 317.51466 kg |
| 100 st | 635.02932 kg |
| 1,000 st | 6,350.2932 kg |
Other weight conversions
How to convert stone to kilograms
Multiply the number of stone by 6.3502932 to get kilograms: kg = st × 6.3502932.
Example: 5 st = 31.751466 kg.
The stone (st) and the kilogram (kg) are both units of weight. Need the opposite direction? Use the kg to st converter.
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Metric and imperial units
The metric system (SI) is used by almost every country and by science worldwide. Its units scale by powers of ten – 1 kilometer is 1,000 meters, 1 meter is 100 centimeters – which makes conversions inside the system easy. The imperial and US customary systems (inches, feet, pounds, gallons) are still used daily in the United States and partly in the UK.
Since 1959 the inch has been defined as exactly 2.54 centimeters and the pound as exactly 0.45359237 kilograms, so conversions between the two systems are exact. Note that a US gallon (3.785 L) and an imperial gallon (4.546 L) are different – choose the right one above.
This converter covers 10 categories and 66 units: length, weight, temperature, volume, area, speed, time, data, energy, pressure.
Frequently asked questions
How many kilograms are in a stone?
1 stone = 6.3502932 kilograms.
How do I convert stone to kilograms?
Use the formula kg = st × 6.3502932. For example, 5 st = 31.751466 kg.
How do I convert kilograms back to stone?
1 kilogram = 0.15747304 stone. Use the kg to st converter linked on this page.
Are these conversions exact?
Yes – all factors use the internationally defined values (for example 1 inch = 2.54 cm exactly, 1 pound = 0.45359237 kg exactly). Results are rounded to 8 significant digits for display.