Stones to Kilograms Converter (stone to kg)
Enter a value in stones to see it in kilograms instantly, or type in the kilograms box to convert the other way. 1 stone = 6.3502932 kilograms, and 1 kilogram = 0.15747304 stones.
A stone is 14 pounds, or 6.35 kg. Body weight in the UK and Ireland is given in stone and pounds: 11 st 4 lb is 11.286 stone, or 71.7 kg. Enter the stone figure as a decimal (pounds ÷ 14) to convert.
1 stone = 6.3502932 kilograms. Formula: kg = st × 6.3502932 (or st ÷ 0.15747304)
1 stone in all weight units
| Milligrams (mg) | 6,350,293.2000000002 |
| Grams (g) | 6,350.2932 |
| Kilograms (kg) | 6.3502932 |
| Metric tons (t) | 0.0063502932 |
| Ounces (oz) | 224 |
| Pounds (lb) | 14 |
| US tons (US ton) | 0.007 |
| UK tons (UK ton) | 0.00625 |
| Newtons (N) | 62.275103 |
How to convert stones to kilograms
kg = st × 6.3502932
Multiply the number of stones by 6.3502932. To convert kilograms back to stones, multiply by 0.15747304, or divide by 6.3502932.
Example: 5 stones × 6.3502932 = 31.751466 kilograms.
Stones to Kilograms conversion table
| Stones | Kilograms |
|---|---|
| 1 st | 6.3502932 kg |
| 2 st | 12.700586 kg |
| 3 st | 19.05088 kg |
| 4 st | 25.401173 kg |
| 5 st | 31.751466 kg |
| 6 st | 38.101759 kg |
| 7 st | 44.452052 kg |
| 8 st | 50.802345 kg |
| 9 st | 57.152639 kg |
| 10 st | 63.502932 kg |
| 12 st | 76.203518 kg |
| 15 st | 95.254398 kg |
| 20 st | 127.00586 kg |
| 25 st | 158.75733 kg |
| 30 st | 190.5088 kg |
| 40 st | 254.01173 kg |
| 50 st | 317.51466 kg |
| 60 st | 381.01759 kg |
| 70 st | 444.52052 kg |
| 75 st | 476.27199 kg |
| 80 st | 508.02345 kg |
| 90 st | 571.52639 kg |
| 100 st | 635.02932 kg |
| 200 st | 1,270.0586 kg |
| 250 st | 1,587.5733 kg |
| 500 st | 3,175.1466 kg |
| 1,000 st | 6,350.2932 kg |
| Kilograms | Stones |
|---|---|
| 1 kg | 0.15747304 st |
| 2 kg | 0.31494609 st |
| 3 kg | 0.47241913 st |
| 4 kg | 0.62989218 st |
| 5 kg | 0.78736522 st |
| 6 kg | 0.94483827 st |
| 7 kg | 1.1023113 st |
| 8 kg | 1.2597844 st |
| 9 kg | 1.4172574 st |
| 10 kg | 1.5747304 st |
| 12 kg | 1.8896765 st |
| 15 kg | 2.3620957 st |
| 20 kg | 3.1494609 st |
| 25 kg | 3.9368261 st |
| 30 kg | 4.7241913 st |
| 40 kg | 6.2989218 st |
| 50 kg | 7.8736522 st |
| 60 kg | 9.4483827 st |
| 70 kg | 11.023113 st |
| 75 kg | 11.810478 st |
| 80 kg | 12.597844 st |
| 90 kg | 14.172574 st |
| 100 kg | 15.747304 st |
| 200 kg | 31.494609 st |
| 250 kg | 39.368261 st |
| 500 kg | 78.736522 st |
| 1,000 kg | 157.47304 st |
About the stone and the kilogram
The stone is 14 pounds, exactly 6.35029318 kg. It is still the everyday unit for body weight in the UK and Ireland.
The kilogram is the SI base unit of mass, defined since 2019 in terms of the Planck constant. Body weight, groceries and luggage use kilograms in most of the world.
Frequently asked questions
How many kilograms are in a stone?
There are 6.3502932 kilograms in 1 stone. For any number of stones, multiply by 6.3502932.
How many stones are in a kilogram?
1 kilogram = 0.15747304 stones. To convert kilograms to stones, multiply by 0.15747304 or divide by 6.3502932.
What is 5 stones in kilograms?
5 stones = 31.751466 kilograms (5 × 6.3502932).
Is the stone to kg conversion exact?
Yes. The 1959 international agreement defined the avoirdupois pound as exactly 0.45359237 kg, so the ounce, stone and ton factors are exact too. Newtons use standard gravity, 9.80665 m/s², which is also an exact defined value. Results are rounded to eight significant digits for display.
Related calculators
Last updated . Formulas are shown on the page and checked against the worked example.
Conversion factors are exact international definitions where one exists and standard reference values elsewhere. Results are rounded to 8 significant digits.