What is a pounds to stone converter?
A pounds to stone converter turns a weight measured in pounds (lb) into stone (st), and back again. The stone is an imperial unit still widely used in the United Kingdom and Ireland to describe body weight, where someone might say they weigh “11 stone” rather than “154 pounds”. The pound is used for the same purpose in the United States, so converting between the two is common when comparing body weight across regions.
The converter is bidirectional: type into the pounds field or the stone field and the other updates at once. Each field can also switch to a related unit such as ounces or kilograms if you need a different view of the same weight.
How does it work?
The relationship is refreshingly simple: one stone equals exactly 14 pounds. To convert pounds to stone you divide by 14; to convert stone to pounds you multiply by 14. Because the factor is a whole number, results in stone often come out as a whole part plus a fraction, which is why body weight in stone is frequently written as “stone and pounds” (for example, 11 st 6 lb).
Formula
And the inverse:
Example conversions
Convert 28 pounds to stone
So 28 lb is exactly 2 stone.
Convert 3 stone to pounds
So 3 st is exactly 42 pounds.
Conversion table
| Pounds (lb) | Stone (st) |
|---|---|
| 14 | 1 |
| 28 | 2 |
| 42 | 3 |
| 70 | 5 |
| 140 | 10 |
Notes
- To read a decimal stone value as “stone and pounds”, multiply the fractional part by 14. For example, 11.5 st = 11 st + (0.5 × 14) = 11 st 7 lb.
- The stone is not part of the US customary system in everyday use, so US body weights are usually given in pounds only.
- Need the metric equivalent? Try the stone to kilograms converter or the kilograms to pounds converter.
Frequently asked questions
How many pounds are in a stone?
There are exactly 14 pounds in one stone.
How do I convert pounds to stone?
Divide the number of pounds by 14. For example, 98 lb ÷ 14 = 7 st.
Why is 14 pounds equal to one stone?
The stone was historically standardized at 14 avoirdupois pounds in Britain for weighing goods and, later, people. That value has remained fixed ever since.
Where is the stone still used?
The stone remains in common use for personal body weight in the United Kingdom and Ireland, even though official and scientific measurements there use the metric system.