Kilograms to Stone Converter
Convert kilograms to stone instantly. One kilogram equals exactly 0.157473 stone. Type in either box to convert both ways, then use the chart, worked examples and everyday sizes below.
How to convert kilograms to stone
Worked example: convert 120 kilograms to stone. Using stone ← kilograms × 0.1574730444, we get 120 × 0.1574730444 = 18.896765 st. To check the result, convert back: 18.896765 st ÷ 0.1574730444 = 120 kg.
Kilograms to stone chart
| Kilograms (kg) | Stone (st) |
|---|---|
| 1 kg | 0.157473 st |
| 2 kg | 0.3149461 st |
| 3 kg | 0.4724191 st |
| 4 kg | 0.6298922 st |
| 5 kg | 0.7873652 st |
| 6 kg | 0.9448383 st |
| 8 kg | 1.259784 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 |
| 30 kg | 4.724191 st |
| 40 kg | 6.298922 st |
| 50 kg | 7.873652 st |
| 75 kg | 11.81048 st |
| 100 kg | 15.7473 st |
| 150 kg | 23.62096 st |
| 200 kg | 31.49461 st |
| 250 kg | 39.36826 st |
| 500 kg | 78.73652 st |
| 1,000 kg | 157.473 st |
Stone to kilograms (reverse)
| Stone (st) | Kilograms (kg) |
|---|---|
| 1 st | 6.350293 kg |
| 2 st | 12.70059 kg |
| 5 st | 31.75147 kg |
| 10 st | 63.50293 kg |
| 20 st | 127.0059 kg |
| 50 st | 317.5147 kg |
| 100 st | 635.0293 kg |
| 250 st | 1,587.573 kg |
| 500 st | 3,175.147 kg |
| 1,000 st | 6,350.293 kg |
About the kilogram and the stone
The kilogram is the SI base unit of mass. Since May 2019 it has been defined using the Planck constant instead of the old platinum-iridium cylinder kept near Paris. It is used for body weight and groceries in most countries.
A stone is 14 pounds, or about 6.35 kilograms. It is used almost only in the UK and Ireland, mainly for body weight: someone who weighs 11 stone 7 pounds weighs 161 pounds.
One stone equals 6.350293 kilograms, which makes the stone the heavier unit of the two.
Everyday sizes in kilograms and stone
| Everyday example (approximate) | In kilograms | In stone |
|---|---|---|
| A liter of water | 1 kg | 0.15747 st |
| A newborn baby | 3.4 kg | 0.53541 st |
| A bowling ball (maximum) | 7.26 kg | 1.1433 st |
| An average adult | 75 kg | 11.81 st |
| A grand piano | 300 kg | 47.242 st |
| A small car | 1,200 kg | 188.97 st |
Kilograms to stone FAQ
How many stone are in one kilogram?
One kilogram equals exactly 0.1574730444 stone. In the other direction, one stone equals 6.3502932 kilograms.
How do I convert kilograms to stone without a calculator?
convert 120 kilograms to stone. Using stone ← kilograms × 0.1574730444, we get 120 × 0.1574730444 = 18.896765 st. To check the result, convert back: 18.896765 st ÷ 0.1574730444 = 120 kg. For a quick estimate, round the factor to 0.16. Then 120 kg is about 19.2 st, compared with the exact 18.8968 st (an error of 1.6%). That is close enough for planning, but use the calculator above when the number matters.
What is a small car in stone?
A small car is about 1,200 kilograms, which is 188.97 stone. Treat that as an approximate everyday figure rather than an official measurement.
Are the kilograms and stone the same in every country?
The kilogram is defined from the Planck constant, so it is the same everywhere. The stone is exactly 14 pounds (6.35029318 kg). It is not used in the United States.