70 kg to st
- Kilograms (kg)
- 70 kg
- Stone
- 11.0231131092 st
Checked against: Exact-fraction computation from the legal unit definitions
Kilograms to stone converter
Convert kilograms to stone (kg to stone) with the exact factor, a conversion chart and worked steps.
By AdminDrafted with AI writing toolsUpdated Checked examples: 3
Stone
st
Stone: 11.0231131092 st
- Conversion
- 70 kg = 11.0231131092 st
- 1 st in kilograms
- 6.35029318kg
70 kg is about 11.0231131092 st. In the other direction, 1 st ≈ 6.35029318 kg.
Kilograms to stone
Kg to stone chart
| Kilograms | Stone |
|---|---|
| 0.5 | 0.0787 |
| 1 | 0.1575 |
| 2 | 0.3149 |
| 5 | 0.7874 |
| 10 | 1.5747 |
| 20 | 3.1495 |
| 23 | 3.6219 |
| 50 | 7.8737 |
| 60 | 9.4484 |
| 70 | 11.0231 |
| 80 | 12.5978 |
| 100 | 15.7473 |
How it's calculated S
Conversion factor
Rounded here for display; the calculation uses 50 significant digits.
Multiply
About the kilograms to stone converter
To convert kilograms to stone, multiply by 0.1574730444; to convert back, multiply by 6.35029318. For example, 70 kg is about 11.023113 st. Displayed factors and results may be rounded.
Kilogram labels are used for luggage allowances, bulk ingredients and body mass. Converting a whole or fractional kilogram into smaller units is useful when a scale or recipe expects a finer denomination. Keep the measurement's original precision instead of assuming every displayed digit was measured.
stone: 1 st = 14 lb = 6.35029318 kg. These values are exact.
Both units are defined exactly. Calculations use 50 significant digits and round only for display.
How to convert kg to stone
Divide the kilograms by 6.35029318, the exact number of kilograms in one stone. So 70 kg = 11.0231 st and 80 kg = 12.5978 st. In the UK and Ireland, where body weight is still given in stone, that decimal is then split into stone and pounds.
Where 6.35029318 comes from
A stone is 14 avoirdupois pounds, and the 1959 international yard and pound agreement fixed the pound at exactly 0.45359237 kg. So 1 st = 14 × 0.45359237 = 6.35029318 kg, with no rounding (Gibraltar Weights and Measures Act tables).
Going the other way, 1 kg is 0.157473 st, so multiplying by 0.157473 gives the same answer as dividing by 6.35029318.
Converting kg to stone and pounds
- Divide by 6.35029318 to get decimal stone: 80 kg ÷ 6.35029318 = 12.5978 st.
- Keep the whole number as the stones: 12 st.
- Multiply the part after the decimal point by 14 to get pounds: 0.5978 × 14 = 8.37 lb.
So 80 kg is 12 st 8.4 lb, usually rounded to 12 st 8 lb.
For 70 kg the leftover is tiny: 11 st and 0.323583529 lb, so 70 kg is 11 stone almost exactly. You get the same split by going through pounds: 70 kg is 154.32 lb, and 11 × 14 = 154 lb leaves 0.32 lb.
Kilograms to stone chart
| Kilograms | Stone, rounded |
|---|---|
| 1 | 0.157473 |
| 10 | 1.574730 |
| 50 | 7.873652 |
| 60 | 9.448383 |
| 70 | 11.023113 |
| 80 | 12.597844 |
In stone and pounds, those rows are 0 st 2.2 lb, 1 st 8.0 lb, 7 st 12.2 lb, 9 st 6.3 lb, 11 st 0.3 lb and 12 st 8.4 lb. For a heavier example, 100 kg is 15 st 10.5 lb.
Mistakes with decimal stone
- Reading the decimals as pounds. 12.6 st is not 12 st 6 lb. The 0.6 is six tenths of a stone, and 0.6 × 14 = 8.4 lb, so 12.6 st is 12 st 8.4 lb.
- Dividing kilograms by 14. Fourteen is pounds per stone, so it only works on pounds. 70 kg ÷ 14 gives 5, while the right answer is 154.32 lb ÷ 14 = 11.02 st.
- Rounding a stone to 6.4 kg. 80 kg ÷ 6.4 = 12.5 st, or 12 st 7 lb, which is about 1.4 lb light. Using 6.35 is close enough for body weight.
Related conversions
To go back from stone to kilograms, use the stone to kg converter. For a total in pounds only, use kg to lbs, and to split a pound figure into stone, pounds to stone. The weight converter covers every other mass unit.
Worked examples
10 kg to st
- Kilograms (kg)
- 10 kg
- Stone
- 1.5747304442 st
Checked against: Exact-fraction computation from the legal unit definitions
80 kg to st
- Kilograms (kg)
- 80 kg
- Stone
- 12.5978435534 st
Checked against: Exact-fraction computation from the legal unit definitions
Questions
How many stone are in one kilogram?
1 kg is about 0.1574730444 st. stone: 1 st = 14 lb = 6.35029318 kg. These values are exact.
How do I convert kilograms to stone?
Multiply by 0.1574730444: 70 kg × 0.1574730444 ≈ 11.023113 st. To convert back, divide by the same factor. The factor shown may be rounded.
How can I estimate kilograms in stone without a calculator?
Multiply by 0.16. This is 1.6% above the exact factor (about 0.1574730444), so 70 kg comes out as 11.2 st instead of 11.0231 st.
About this calculator
Sources
Checked against references
This calculator includes 3 worked examples with independently sourced answers. They run in the test suite, and you can run them here too.