Convert kilograms to stones

1 kg=0.1575st

Use the converter below to change any kilograms value into stones instantly — with formula, conversion table, and real-world examples.

You have

Equals

0.15747

Conversion formula

Forward

stones = kilograms × 0.1575

Reverse

kilograms = stones × 6.35029

Example: 10 kg × 0.1575 = 1.57473 st.

About both units

From

Kilogram

The kilogram is the SI base unit of mass. Since 2019 it has been defined via the fixed numerical value of Planck's constant — a major shift from the previous definition based on a physical artifact. One litre of water at 4 °C has a mass of almost exactly 1 kg, a coincidence designed into the original 1795 definition.

Real-world: A litre of water weighs 1 kg at 4 °C. An average adult weighs 60–90 kg. A standard bag of flour is 1 kg.

Read full kilogram reference →

Stone

The stone equals 14 pounds or 6.35 kilograms. It is used almost exclusively in the UK and Ireland to express human body weight. A 70 kg person is described as "11 stone" in British English. The stone is not used in trade, science or any other context.

Real-world: A 70 kg adult is about 11 stone. A British NHS weight chart marks stones alongside kg. A heavyweight boxer over 14 stone is typical.

Read full stone reference →

Kilogram to Stone conversion table

Common kilograms to stones values for quick reference.

Kilogram (kg)	Stone (st)
1 kg	0.1575 st
5 kg	0.7874 st
10 kg	1.57473 st
25 kg	3.93683 st
50 kg	7.87365 st
100 kg	15.7473 st
250 kg	39.3683 st
500 kg	78.7365 st
1,000 kg	157.473 st
5,000 kg	787.365 st

Tips & common mistakes

Quick tips

1 kg ≈ 2.205 lb. For quick estimates, double the kg figure and add 10%.
Body weight is best measured first thing in the morning, after using the bathroom but before breakfast.
The kg is the only SI base unit whose name contains a prefix — a historical quirk of the metric system.

Avoid these

Confusing mass (kg) with weight-force (newtons) in physics problems.
Using 2 instead of 2.205 when converting kg to pounds — the 2.5% error matters for airline luggage.
Writing Kg instead of kg — the correct SI abbreviation is lower-case kg.

Frequently asked questions

How many stones in a kilogram?

One kilogram equals 0.1575 stones.

How do I convert kilograms to stones?

Multiply the kilogram value by 0.1575 to get the equivalent in stones.

What is 100 kilograms in stones?

100 kilograms equals 15.7473 stones.

Is a kilogram bigger than a stone?

No. 1 kilogram equals 0.1575 stones, so one kilogram is smaller.

How to convert kilograms to stones without a calculator?

Multiply by 0.16 for a quick estimate; use a calculator for precise results.

Related weight conversions

📊 See full comparison matrix →

Conversions in other categories

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