Convert Kilograms to Stones
Convert Kilograms to Stones instantly. 1 Kilogram (kg) equals 0.1575 Stones (st).
Kilograms to Stones conversion table
| Kilograms (kg) | Stones (st) |
|---|---|
| 1 kg | 0.1575 st |
| 2 kg | 0.3149 st |
| 3 kg | 0.4724 st |
| 5 kg | 0.7874 st |
| 10 kg | 1.5747 st |
| 20 kg | 3.1495 st |
| 50 kg | 7.8737 st |
| 100 kg | 15.7473 st |
| 500 kg | 78.7365 st |
| 1,000 kg | 157.473 st |
1 Kilogram = 0.1575 Stones · multiply Kilograms by 0.1575
About converting Kilograms to Stones
Kilograms (kg) and Stones (st) are both units of weight & mass, so converting between them is a single multiplication: multiply your Kilograms figure by 0.1575. Ten Kilograms comes to 1.5747 Stones, and a hundred works out at 15.7473 Stones.
Rule of thumb: going from Kilograms to Stones divides, so the figure always shrinks — it takes about 6.3503 Kilograms to make a single Stone. If your answer came out bigger, you have the conversion the wrong way round.
What is a Kilogram?
The kilogram was the last SI unit still defined by a physical object — the International Prototype Kilogram, a platinum-iridium cylinder kept in a vault near Paris since 1889. The problem was that it drifted. Careful comparisons against its official copies showed the masses diverging by tens of micrograms, and because the prototype simply was the kilogram by definition, there was no way to say which side had changed. In 2019 it was redefined in terms of the Planck constant, so any properly equipped lab can now realise a kilogram from physics rather than from an artefact.
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 liter of water weighs about a kilogram, 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 Kilograms converter, or browse all Weight & Mass converters.
Frequently asked questions
How many Stones are in one Kilogram?
There are 0.1575 Stones in one Kilogram.
How do I convert Kilograms to Stones?
Multiply the number of Kilograms by 0.1575. For example, 10 Kilograms = 1.5747 Stones.
What is 100 Kilograms in Stones?
100 Kilograms is equal to 15.7473 Stones.
How do I convert Stones to Kilograms?
Multiply the Stones value by 6.3503 (or divide by 0.1575).
Is this Kilograms to Stones conversion exact?
The definition is exact — Kilograms 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 Kilogram?
The kilogram was the last SI unit still defined by a physical object — the International Prototype Kilogram, a platinum-iridium cylinder kept in a vault near Paris since 1889. The problem was that it drifted. Careful comparisons against its official copies showed the masses diverging by tens of micrograms, and because the prototype simply was the kilogram by definition, there was no way to say which side had changed. In 2019 it was redefined in terms of the Planck constant, so any properly equipped lab can now realise a kilogram from physics rather than from an artefact.
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.