Total stones (decimal)
11.0231 st
Kg to Stones Converter: Kilograms to Stones and Pounds
What this page does: it converts kilograms ↔ stones, the UK body-weight unit (1 stone = 14 lb), and shows the result as whole stones plus pounds, for example 70 kg = 11 st 0.3 lb.
For a plain kilograms ↔ pounds conversion, use our kg-to-pounds converter.
For a plain kilograms ↔ pounds conversion, use our kg-to-pounds converter.
Try the reference adult weight, 70 kg.
11 st 0.3 lb
11.0231 stones in total
Total pounds
154.32 lb
Kilograms
70 kg
Grams
70,000 g
Show your work
Quick reference table: kg to stones and pounds
Generated live by the same engine as the converter above, rounded to your chosen precision.
| Kilograms | Stones + pounds | Total stones | Total pounds |
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Stones, in context
1 stone = 14 lb exactly
That is 6.35029318 kg, from 14 × 0.45359237 kg.
10 stone = 63.5029318 kg
So “ten stone” and “63.5 kilos” are the same claim to within 3 grams.
Every ~6.35 kg is one stone
Losing 10 kg is about 1 st 8 lb; gaining a stone is 6.35 kg.
70 kg lands on 11 stone
70 kg = 11.0231 st, i.e. 11 st 0.3 lb. Almost exactly eleven stone.
Stones are a display format for body weight in the UK and Ireland. For medical dosing or BMI math, convert back to kilograms first.
How the conversion works
Two exact constants and one split. One stone is exactly 14 pounds, and one pound is exactly 0.45359237 kilograms (the 1959 international definition), so one stone is exactly 6.35029318 kg. To convert kilograms to stones, divide by 6.35029318. The whole number is your stones; multiply the decimal part by 14 to get the remaining pounds. Only the pounds remainder is rounded, at the precision you choose, so the stones figure can never be off by one.
Common conversions at a glance
People search for this in many ways — kilograms to stones converter, kg to st converter, kilos to stones converter, kilo to stone converter, or simply kg to st lb — but they all mean the same kg to stones formula: st = kg ÷ 6.35029318. How do you convert kg to stones and pounds by hand? To convert kg to stones and pounds: divide, take the whole number as stones, and multiply the decimal part by 14 for the pounds, as the "Show your work" box above demonstrates.
1 kg in stones is 0.1574730444 st — the answer to "how many stones in a kg" and "how much is 1 kg in stones". Flipped around: 1 stone in kg is exactly 6.35029318 kg, which also answers how many kg in a stone, how many kg is a stone, 1 stone is how many kg, and 14 pounds in kg. Common whole-stone lookups: 10 stone in kg = 63.5029318 kg, 11 stone in kg = 69.85322498 kg, 15 stone in kg = 95.25439770 kg.
To convert stones to kg, use the reverse mode above — it is a full stones to kg converter, stone to kg converter, and stones and pounds to kg converter: enter whole stones plus the pounds remainder (stone and pounds to kg in one step). Body-weight examples in UK form: 70 kg to stone and lb is 11 st 0.3 lb (how many stones is 70 kg? 11.0231), and 63.5 kg in stones is 9.9995 st — effectively 10 stone. For body weight, kg to stones and pounds is the everyday UK format, which is why this kg to stones and pounds converter shows whole stones plus pounds first. This page also explains decimal stones to stones and pounds (11.5 st = 11 st 7 lb), answers why is a stone 14 pounds, and works as a stones and pounds calculator in either direction. Built as a UK weight converter for kg to stones and back.
Frequently asked questions
How do I convert kilograms to stones?
Divide the kilograms by 6.35029318, the exact weight of one stone in kilograms. For example, 70 kg ÷ 6.35029318 = 11.0231131092 st.
What is 70 kg in stones and pounds?
70 kg = 11.0231 st, which is 11 st plus 0.3236 lb, usually written 11 st 0.3 lb.
How many kilograms is 1 stone?
One stone is exactly 6.35029318 kg, because 1 stone = 14 lb and 1 lb = 0.45359237 kg, so 14 × 0.45359237 = 6.35029318.
How many stones is 1 kg?
1 kg = 0.1574730444 st (1 ÷ 6.35029318).
What is 100 kg in stones and pounds?
100 kg = 15.7473 st, which is 15 st plus 10.4623 lb, usually written 15 st 10.5 lb.
How do I convert stones and pounds back to kilograms?
Multiply the stones by 6.35029318, multiply the pounds by 0.45359237, and add the two. For example, 10 st = 10 × 6.35029318 = 63.5029318 kg.
Is 11.5 stones the same as 11 stones and 5 pounds?
No, and this is the most common mistake. 11.5 st means 11 st plus 0.5 × 14 = 7 lb, so 11.5 st = 11 st 7 lb, not 11 st 5 lb.
Why is a stone exactly 14 pounds?
The stone is a UK imperial unit defined as exactly 14 avoirdupois pounds. Unlike older regional stones that varied, the modern UK stone has been fixed at 14 lb.
Is a stone the same unit everywhere?
For mass, yes: the modern stone is always 14 lb. But the United States does not use stones at all and quotes body weight in pounds only, while the UK and Ireland use stones and pounds.
Why do the UK and Ireland still use stones for body weight?
Convention. Most UK adults weigh between 8 and 18 stone, so the whole-stone number alone carries useful information, in a way that 112 to 252 lb does not. Hospital records still usually work in kilograms.
What is 50 kg in stones and pounds?
50 kg = 7.8737 st, which is 7 st plus 12.2311 lb, usually written 7 st 12.2 lb.
Why does 63.5 kg show as 10 stone when I round to whole pounds?
63.5 kg is 9.9995 st, with a pound remainder of 13.99 lb. Rounded to whole pounds that remainder becomes 14 lb, which rolls over into the next stone: 10 st 0 lb. In fact 63.5029318 kg is exactly 10 stone.
Should I round the pounds to whole numbers?
Match your scale. Bathroom scales in st/lb usually show whole or quarter pounds, so a 2-decimal remainder is false precision next to them. This converter only rounds the pound remainder, never the stones, so the stone figure stays correct whatever precision you pick.
Can I use stones for luggage or shipping weight?
Not really. Stones are a body-weight format. Airlines, couriers and recipes use kilograms, or pounds in the US. For a plain kilograms-to-pounds conversion, use our kg-to-pounds converter.
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