Stone To Kilogram Calculator

Work out stone to kilogram instantly with clear inputs, formula shown and shareable results.

About Stone To Kilogram Calculator

Converting Stones to Kilograms is a single multiplication: one st equals 6.35029318 kg, so the amount is multiplied by that factor. Switching the direction divides by the same factor instead. This factor is an exact definition, not a rounded approximation, so the conversion is precise at any scale. One stone is 14 pounds, so 14 × 0.45359237 = 6.35029318 kg exactly.

Formulas

Stones → Kilograms

kg = st × 6.35029318

Kilograms → Stones

st = kg ÷ 6.35029318

Worked example

With the default values below, Stone To Kilogram Calculator returns Converted Value of 6.35029. Change any input above and every figure here is recalculated in your browser.

Inputs used

Amount to convert: 1
Directionone of Stones → Kilograms, Kilograms → Stones: Stones → Kilograms

Results

Converted Value: 6.35029
Result Unit: kg
Multiplier Applied: 6.35029318
Conversion Used: 1 st = 6.35029318 kg

Step by step

1Values used
2Stones → Kilograms
3Kilograms → Stones
4Converted Value= 6.35029
5Result Unit= kg
6Multiplier Applied= 6.35029318
7Conversion Used= 1 st = 6.35029318 kg

Assumptions and limits

The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 8 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How many kg are in one st?

One st is 6.35029318 kg. That figure is exact by definition.

How do I convert Kilograms back to Stones?

Divide by 6.35029318 instead of multiplying — or just switch the direction selector, which does it for you.