This converter turns pounds into stones instantly, using the exact factor 1 pound = 0.07142857143 stones. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
Exactly 0.45359237 kilograms, the primary US unit of body and produce weight. Fourteen pounds — still the customary way to state body weight in the UK and Ireland.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
pounds- The amount you are converting, measured in pounds
0.07142857143- The exact number of stones in one pound
stones- The converted result
How it works, step by step
- Enter the number of pounds you want to convert.
- The value is multiplied by 0.07142857143, the exact conversion factor.
- The result is displayed in stones, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 pounds
Multiply 5 by 0.071428571. That gives 0.357143 stones. A quick sanity check: one pound is smaller than one stone, so the number should get smaller — and it does.
Converting 72 pounds
72 × 0.071428571 = 5.1429 stones. Working backwards, 5.1429 ÷ 0.071428571 returns 72 pounds, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many stones are in one pound?
Exactly 0.07142857143. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert pounds to stones?
Stones = pounds × 0.07142857143. To reverse it, divide instead: pounds = stones ÷ 0.07142857143, which is the same as multiplying by 14.
Is the pound bigger than the stone?
No. One pound is only 0.0714286 of a stone, so the stone is the larger unit.
Why does my answer differ slightly from other pounds to stones converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a pound?
Exactly 0.45359237 kilograms, the primary US unit of body and produce weight.
What is a stone?
Fourteen pounds — still the customary way to state body weight in the UK and Ireland.
Pounds to stones reference table
| Pounds | Stones |
|---|---|
| 0.5 lb | 0.035714 st |
| 1 lb | 0.071429 st |
| 2 lb | 0.142857 st |
| 3 lb | 0.214286 st |
| 5 lb | 0.357143 st |
| 10 lb | 0.714286 st |
| 15 lb | 1.0714 st |
| 20 lb | 1.4286 st |
| 25 lb | 1.7857 st |
| 50 lb | 3.5714 st |
| 75 lb | 5.3571 st |
| 100 lb | 7.1429 st |
| 250 lb | 17.8571 st |
| 500 lb | 35.7143 st |
| 1000 lb | 71.4286 st |
Exact factor: 1 pound = 0.07142857143 stones. Values rounded for display.