Weight converter
Kilograms to Stones
Kilograms and Stones measure the same quantity in different unit systems. The relationship is 1 kg = 0.15747304 st, which gives 0.15747304 st per kg. Below you can convert any value, check a worked example and read the full chart.
Formula 1 kg = 0.15747304 st
Need the other direction? Stones to Kilograms.
How to convert Kilograms to Stones
The kilogram is the SI base unit of mass; since 2019 it is defined by the Planck constant. The stone is 14 pounds, used mainly in the UK and Ireland for body weight.
To convert Kilograms to Stones, multiply the value in kg by 0.15747304. For example, 10 kg × 0.15747304 = 1.57473 st. This works because the ratio between the two units is constant for every value in weight.
Worked examples
| kg | st |
|---|---|
| 1 kg | 0.15747304 st |
| 2.5 kg | 0.39368261 st |
| 5 kg | 0.78736522 st |
| 10 kg | 1.57473 st |
| 25 kg | 3.936826 st |
| 50 kg | 7.873652 st |
| 100 kg | 15.747304 st |
Reverse conversion
| st | kg |
|---|---|
| 1 st | 6.350293 kg |
| 5 st | 31.751466 kg |
| 10 st | 63.502932 kg |
| 25 st | 158.757329 kg |
| 50 st | 317.514659 kg |
| 100 st | 635.029318 kg |
When this conversion is useful
This is the calculation you need when you are comparing body weight, shipping weight or a recipe across metric and imperial units. Because the factor is fixed, you can use the same number for a single measurement or for a batch: 1,000 kg is 157.473044 st.
Is the conversion exact?
Yes for practical use: the factors come from international definitions, with rounding applied only for display.
Reference: BIPM SI Brochure and NIST SP 811. Last reviewed: 2026-11-01.
kg to st conversion chart
The chart lists the most requested values. For a value that is not here, use the converter at the top of the page.
| Kilograms (kg) | Stones (st) |
|---|---|
| 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 | 1.102311 st |
| 8 kg | 1.259784 st |
| 9 kg | 1.417257 st |
| 10 kg | 1.57473 st |
| 11 kg | 1.732203 st |
| 12 kg | 1.889677 st |
| 13 kg | 2.04715 st |
| 14 kg | 2.204623 st |
| 15 kg | 2.362096 st |
| 16 kg | 2.519569 st |
| 17 kg | 2.677042 st |
| 18 kg | 2.834515 st |
| 19 kg | 2.991988 st |
| 20 kg | 3.149461 st |
| 21 kg | 3.306934 st |
| 22 kg | 3.464407 st |
| 23 kg | 3.62188 st |
| 24 kg | 3.779353 st |
| 25 kg | 3.936826 st |
| 26 kg | 4.094299 st |
| 27 kg | 4.251772 st |
| 28 kg | 4.409245 st |
| 29 kg | 4.566718 st |
| 30 kg | 4.724191 st |
| 31 kg | 4.881664 st |
| 32 kg | 5.039137 st |
| 33 kg | 5.19661 st |
| 34 kg | 5.354084 st |
| 35 kg | 5.511557 st |
| 36 kg | 5.66903 st |
| 37 kg | 5.826503 st |
| 38 kg | 5.983976 st |
| 39 kg | 6.141449 st |
| 40 kg | 6.298922 st |
| 41 kg | 6.456395 st |
| 42 kg | 6.613868 st |
| 43 kg | 6.771341 st |
| 44 kg | 6.928814 st |
| 45 kg | 7.086287 st |
| 46 kg | 7.24376 st |
| 47 kg | 7.401233 st |
| 48 kg | 7.558706 st |
| 49 kg | 7.716179 st |
| 50 kg | 7.873652 st |
| 60 kg | 9.448383 st |
| 70 kg | 11.023113 st |
| 80 kg | 12.597844 st |
| 90 kg | 14.172574 st |
| 100 kg | 15.747304 st |
Frequently asked questions
How many Stones are in 1 Kilograms?
1 kg equals 0.15747304 st.
How do I convert Kilograms to Stones?
Multiply the kg value by 0.15747304. Example: 25 kg = 3.936826 st.
What is 2.5 kg in st?
2.5 kg = 0.39368261 st.
Is the kg to st conversion exact?
Yes for practical use: the factors come from international definitions, with rounding applied only for display.
Does the calculator work offline?
Yes. The conversion runs in your browser with JavaScript, so it works after the page has loaded, even without a connection.