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Stones to Kilograms

Convert stones (st) to kilograms (kg) — instant and accurate

1 st = 6.35029 kg  ·  To convert stones to kilograms, multiply by 6.35029.

6.35029 kg

Stones to Kilograms Conversion Table

StonesKilograms
1 st6.35029 kg
2 st12.7006 kg
3 st19.0509 kg
4 st25.4012 kg
5 st31.7515 kg
6 st38.1018 kg
7 st44.4521 kg
8 st50.8023 kg
9 st57.1526 kg
10 st63.5029 kg
15 st95.2544 kg
20 st127.006 kg
25 st158.757 kg
30 st190.509 kg
40 st254.012 kg
50 st317.515 kg
75 st476.272 kg
100 st635.029 kg
250 st1587.57 kg
500 st3175.15 kg
1000 st6350.29 kg

Formula

kilograms = stones × 6.35029
stones = kilograms × 0.15747304
Example: 5 st × 6.35029 = 31.7515 kg

About the Stones-to-Kilograms Conversion

Converting stones to kilograms is the standard UK-to-metric body-weight conversion, needed for medical records, fitness tracking, or comparing weights internationally. One stone equals 6.35029318 kilograms.

Real-World Examples

  • 1 st (one stone) = 6.35029 kg
  • 10 st (10-stone person) = 63.5029 kg
  • 12 st (12-stone adult) = 76.2035 kg
  • 15 st (15-stone athlete) = 95.2544 kg

Kilograms to Stones (Reverse)

KilogramsStones
1 kg0.157473 st
2 kg0.314946 st
3 kg0.472419 st
4 kg0.629892 st
5 kg0.787365 st
6 kg0.944838 st
7 kg1.10231 st
8 kg1.25978 st
9 kg1.41726 st
10 kg1.57473 st
15 kg2.3621 st
20 kg3.14946 st
25 kg3.93683 st
30 kg4.72419 st
40 kg6.29892 st
50 kg7.87365 st
75 kg11.8105 st
100 kg15.7473 st
250 kg39.3683 st
500 kg78.7365 st
1000 kg157.473 st

Frequently Asked Questions

How many kilograms are in a stone?

1 stone equals 6.35029 kilograms.

How do I convert stones to kilograms?

Multiply the value in stones by 6.35029 to get kilograms. For example, 5 st × 6.35029 = 31.7515 kg.

How do I convert kilograms back to stones?

Multiply the value in kilograms by 0.15747304 to get stones. Equivalently, divide by 6.35029.

How many stones are in a kilogram?

1 kilogram equals 0.15747304 stones.

How many kilograms is 12 st?

12 st (a typical adult in stones) equals 76.2035 kg.

Is the stones-to-kilograms conversion exact?

The underlying definitions are exact. The decimal representation 6.35029 is rounded; six significant figures is more than sufficient for everyday use.

About Stones and Kilograms

The stone (symbol st) equals 14 pounds, or exactly 6.35029318 kilograms. It remains common for stating body weight in the UK and Ireland.

The kilogram (symbol kg) is the SI base unit of mass. Since 2019 it has been defined by the Planck constant rather than by a physical reference cylinder.

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