Unit Converter

Kilograms to Stone Converter

Convert kilograms to stone instantly. 1 kg = 0.157473 st. Free online kg-to-stone converter with exact formulas and tables.

Stone

0.157473 st

1 kg = 0.157473 st

Kilograms to Stone formula

st = kg × 0.157473

The kilogram is the SI base unit of mass, while the stone is a traditional imperial weight unit used primarily in the UK and Ireland. One kilogram equals 0.157473 stone; this factor derives from the stone's fixed definition of exactly 14 pounds, with 1 kg standardized to 2.20462 pounds.

Kilograms to Stone conversion table

Kilograms (kg)Stone (st)
1 kg0.157473 st
2 kg0.314946 st
3 kg0.472419 st
5 kg0.787365 st
10 kg1.5747 st
20 kg3.1495 st
25 kg3.9368 st
50 kg7.8737 st
100 kg15.7473 st
500 kg78.7365 st
1000 kg157.47 st

When you need to convert kilograms to stone

  • Body weight tracking for UK-based fitness or medical records
  • Converting metric product weights to stone for British retailers
  • Travel or immigration documents requiring weight in stone
  • Nutrition planning and diet tracking in Commonwealth countries
  • Understanding pet or livestock weights across metric and imperial regions

Frequently asked questions

How many stone is 1 kilogram?

1 kg equals 0.157473 stone. Use the formula st = kg × 0.157473 to convert any kilogram value to stone accurately.

Why do some countries use stone instead of kilograms?

Stone is a traditional imperial unit long used in the UK, Ireland, and some Commonwealth nations for body weight and everyday measurements, even though the kilogram is the global scientific standard.

Is the kg-to-stone conversion exact?

Yes. The stone is defined as exactly 14 pounds, and the conversion factor 0.157473 is mathematically precise based on the fixed pound-to-kilogram relationship.

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FreeToolz Editorial Team · Last reviewed July 2026

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