Convert Pounds to Stones
Convert Pounds to Stones instantly. 1 Pound (lb) equals 0.07143 Stones (st).
Pounds to Stones conversion table
| Pounds (lb) | Stones (st) |
|---|---|
| 1 lb | 0.07143 st |
| 2 lb | 0.1429 st |
| 3 lb | 0.2143 st |
| 5 lb | 0.3571 st |
| 10 lb | 0.7143 st |
| 20 lb | 1.4286 st |
| 50 lb | 3.5714 st |
| 100 lb | 7.1429 st |
| 500 lb | 35.7143 st |
| 1,000 lb | 71.4286 st |
1 Pound = 0.07143 Stones · multiply Pounds by 0.07143
About converting Pounds to Stones
Pounds (lb) and Stones (st) are both units of weight & mass, so converting between them is a single multiplication: multiply your Pounds figure by 0.07143. Ten Pounds comes to 0.7143 Stones, and a hundred works out at 7.1429 Stones.
Rule of thumb: going from Pounds to Stones divides, so the figure always shrinks — it takes about 14 Pounds to make a single Stone. If your answer came out bigger, you have the conversion the wrong way round.
What is a Pound?
The pound descends from the Roman libra pondo, "a pound by weight", which is why English took pound from the second word and the abbreviation lb from the first. The version used here is the avoirdupois pound, from an Old French phrase meaning "goods of weight" — the merchants’ system for ordinary bulk trade. A separate troy pound survived for precious metals and was never the same size. The 1959 international yard and pound agreement finally fixed the avoirdupois pound at exactly 0.45359237 kilograms across the English-speaking world, ending a long tail of national variants.
What is a Stone?
The stone is fourteen pounds and, outside Britain and Ireland, essentially extinct. There it is still how people state body weight: a Briton says "eleven stone four", meaning eleven stone plus four pounds, and the plural stays stone in that construction — never "eleven stones". Americans give the identical weight as a single number in pounds, which is why British figures baffle them. The unit predates standardisation and was once a moving target, with a stone of wool, cheese or glass all weighing different amounts, and it is no longer permitted for trade in the UK at all.
To put both in perspective: a pound is roughly a loaf of bread, while most adults weigh somewhere between 9 and 14 stone.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Stones to Pounds converter, or browse all Weight & Mass converters.
Frequently asked questions
How many Stones are in one Pound?
There are 0.07143 Stones in one Pound.
How do I convert Pounds to Stones?
Multiply the number of Pounds by 0.07143. For example, 10 Pounds = 0.7143 Stones.
What is 100 Pounds in Stones?
100 Pounds is equal to 7.1429 Stones.
How do I convert Stones to Pounds?
Multiply the Stones value by 14 (or divide by 0.07143).
Is this Pounds to Stones conversion exact?
The definition is exact — Pounds and Stones are both fixed against the same base by international agreement — but the decimal shown here is rounded for readability, because the true ratio does not terminate. For engineering or scientific work, carry more decimal places than this page displays.
What is a Pound?
The pound descends from the Roman libra pondo, "a pound by weight", which is why English took pound from the second word and the abbreviation lb from the first. The version used here is the avoirdupois pound, from an Old French phrase meaning "goods of weight" — the merchants’ system for ordinary bulk trade. A separate troy pound survived for precious metals and was never the same size. The 1959 international yard and pound agreement finally fixed the avoirdupois pound at exactly 0.45359237 kilograms across the English-speaking world, ending a long tail of national variants.
What is a Stone?
The stone is fourteen pounds and, outside Britain and Ireland, essentially extinct. There it is still how people state body weight: a Briton says "eleven stone four", meaning eleven stone plus four pounds, and the plural stays stone in that construction — never "eleven stones". Americans give the identical weight as a single number in pounds, which is why British figures baffle them. The unit predates standardisation and was once a moving target, with a stone of wool, cheese or glass all weighing different amounts, and it is no longer permitted for trade in the UK at all.