In 1 stones there are 6.350293 kilograms. Meanwhile in 1 kilograms there are 0.157473 stones. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Kilograms to Stones calculator above to convert any number.
* Values rounded to 6 decimal places for readability
To convert stones to kilograms, use this fixed conversion:
Example:
For quick estimates, you can round the factor:
This stone to kg conversion works for body weight and other everyday weights, since a stone is a set unit equal to 14 pounds.
1 stone equals 6.35029318 kilograms.
To convert stones to kilograms, multiply the number of stones by 6.35029318.
Use this formula: kg = stones × 6.35029318.
Example: 10 st × 6.35029318 = 63.5029 kg.
1 kilogram equals 0.157473 st.
To convert kilograms to stones, multiply kilograms by 0.157473.
First convert everything to pounds, then convert pounds to kilograms.
Example: 11 st 3 lb = (11 × 14) + 3 = 157 lb; 157 × 0.45359237 = 71.214 kg.
Convert kilograms to total pounds, then split into stones and pounds.
Example: 70 kg ÷ 0.45359237 = 154.324 lb
154.324 ÷ 14 = 11 st with 0.324 lb left, so 11 st 0.3 lb (rounded).
Stones and kilograms use different base units. A stone is fixed at 14 pounds, and a pound is not a clean fraction of a kilogram. That’s why the result often has decimals.
Yes. Stone is the unit name, stones is the plural, and st is the common abbreviation.
Example: 9 stone = 9 stones = 9 st.
Stone is most common in the UK and Ireland for measuring body weight. Many other countries use kilograms, especially in health and sports settings.
The exact conversion uses 1 st = 6.35029318 kg.
For everyday use, rounding to 6.35 kg per stone is often close enough, but exact values help for medical or fitness records.
Round based on how you plan to use the number.
A simple rule is 1 stone is about 6.35 kg.
You can also estimate with 6.5 kg per stone for faster math, but it will be a bit high.
1 st 1 lb = 15 lb.
15 × 0.45359237 = 6.8039 kg.
Use: =stones*6.35029318
If you have stones in cell A1, use: =A1*6.35029318.
Yes, but it’s uncommon today. Stone was once used for trade goods, but the value could vary by item and region. For modern use, a stone is treated as exactly 14 pounds.
The Calculate Box tool to convert stones to kilograms uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a stones value in the box and have it instantly converted to kilograms.