Stones to Kilograms
Convert stones to kilograms instantly, with a reference table.
Stones to Kilograms at a glance
Stones to Kilograms is a free online converter you can use right now to convert stones to kilograms instantly, with a reference table โ no account, no install and no usage limit. It runs entirely inside your browser, so whatever you enter stays on your own device.
- Price
- Free โ no trial, no paid tier, no watermark
- Sign-up
- Not required
- Where it runs
- In your browser โ nothing is uploaded to a server
- Works on
- Chrome, Safari, Firefox and Edge โ desktop, tablet and phone
- Category
- Unit Conversions
Stones to Kilograms conversion table
| Stones (st) | Kilograms (kg) |
|---|---|
| 1 st | 6.350293 kg |
| 2 st | 12.700586 kg |
| 3 st | 19.05088 kg |
| 5 st | 31.751466 kg |
| 10 st | 63.502932 kg |
| 25 st | 158.75733 kg |
| 50 st | 317.51466 kg |
| 100 st | 635.02932 kg |
| 500 st | 3,175.1466 kg |
| 1000 st | 6,350.2932 kg |
About Stones to Kilograms
Convert stones to kilograms instantly, with a reference table of common values. The factor is exact: 1 st = 6.35029318 kg.
Almost exclusively a British body-weight conversion โ turning a weight given in stones into the kilograms that medical records and gym equipment use.
The stone was fixed at 14 pounds by an English statute in 1389. Before standardisation it varied by trade and by commodity, with different stones used for wool, meat and glass. It is used almost exclusively in Britain and Ireland, and almost exclusively for body weight. British people commonly state their weight in stones and pounds while buying everything else in kilograms. A weight of 11 stone is 154 pounds, or about 70 kg.
Worked through with real numbers: 1 st is 6.35 kg, 5 st is 31.751 kg, 50 st is 317.515 kg.
As for the other side of the conversion: A litre of water weighs almost exactly 1 kg, which is not a coincidence โ the metric system was designed that way.
Strictly these are conversions of mass rather than weight โ mass is how much matter something contains, weight is the force gravity exerts on it. The distinction rarely matters on Earth, where the two are proportional, but it is why the same object masses the same on the Moon while weighing about a sixth as much.
How to use Stones to Kilograms
- Enter the number of stones you want to convert.
- The equivalent in kilograms appears instantly โ there is no button to press.
- Check the reference table for common Stones to Kilograms values.
Frequently asked questions
How do I convert stones to kilograms?
Multiply your stones figure by 6.35029318 to get kilograms โ or type a value above and read the answer straight off.
How many kilograms are in one stone?
1 st = 6.35029318 kg.
When would I need to convert stones to kilograms?
Almost exclusively a British body-weight conversion โ turning a weight given in stones into the kilograms that medical records and gym equipment use.
What is a stone, exactly?
The stone was fixed at 14 pounds by an English statute in 1389. Before standardisation it varied by trade and by commodity, with different stones used for wool, meat and glass. A weight of 11 stone is 154 pounds, or about 70 kg.
Where is the kilogram actually used?
It is the base SI unit of mass and the standard for body weight, groceries and freight almost everywhere outside the United States. A litre of water weighs almost exactly 1 kg, which is not a coincidence โ the metric system was designed that way.
Is there anything tricky about weight conversions?
Strictly these are conversions of mass rather than weight โ mass is how much matter something contains, weight is the force gravity exerts on it. The distinction rarely matters on Earth, where the two are proportional, but it is why the same object masses the same on the Moon while weighing about a sixth as much.
Is this converter accurate?
Yes. It uses the exact standard factor of 1 st = 6.35029318 kg, and the conversion runs in your browser so nothing is uploaded.