kg to Stones Converter

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Convert kilograms to stones using the imperial relation 1 stone = 14 lb = 6.35029318 kg. So 70 kg ā‰ˆ 11.02 stone, 80 kg ā‰ˆ 12.60 stone, 100 kg ā‰ˆ 15.75 stone. The stone is the dominant body-weight unit in the United Kingdom and Ireland, where someone might be reported as "12 st 5 lb" rather than 78 kg. Browser-local.

Kilogram (kg)
Stone (st)

Kilogram (kg) ā†’ Stone (st)

Quick reference table

Kilogram (kg)Stone (st)
1 kg0.1575 stone
2 kg0.3149 stone
5 kg0.7874 stone
10 kg1.5747 stone
25 kg3.9368 stone
50 kg7.8737 stone
100 kg15.7473 stone

Glossary

Kilogram (kg)

The kilogram is the SI base unit of mass, redefined in 2019 in terms of the Planck constant (h = 6.62607015Ɨ10ā»Ā³ā“ JĀ·s). One kilogram equals 1000 g, 2.20462 lb or 0.157 stone. It anchors all other metric mass units and is the standard for body weight, groceries, freight and scientific work in nearly every country.

Stone (st)

A stone is exactly 14 pounds or 6.35029318 kg, used in the United Kingdom and Ireland for personal body weight (e.g. "11 st 4 lb"). It is rarely used in the United States, where pounds are reported directly. The stone is not used in scientific or commercial weighing ā€” only in everyday colloquial body-weight reporting.

Metric system (SI)

The metric system is a decimal system of measurement built around the kilogram for mass, the meter for length and the second for time, with multiples and submultiples expressed as powers of ten (milligram, gram, tonne). Adopted in France in 1799 and codified internationally as the International System of Units (SI) in 1960, it is now the official system in nearly every country and the standard in science.

Imperial / US Customary system

The imperial system is the historical English system of weights and measures whose mass units are the ounce, pound, stone and ton (16 oz = 1 lb, 14 lb = 1 stone, 2,000 lb = 1 US short ton). Codified by the British Weights and Measures Act of 1824 and aligned with US Customary by the 1959 international yard-and-pound agreement (1 lb = 0.45359237 kg exactly), it is still used in the United States and the United Kingdom for everyday weights.

Related tools

Stones to Kilograms
Convert stones to kilograms ā€” exact factor 1 stone = 6.3503 kg
Kilograms to Pounds
Convert kilograms to pounds ā€” 1 kg = 2.20462 lb (1 lb = 0.4536 kg)
Pounds to Stones
Convert pounds to stones ā€” 14 lb = 1 stone
Weight & Mass Converter
Convert weight and mass ā€” mg, g, kg, tonnes, ounces, pounds, stones, US tons