How to convert kilograms to stone
To convert a measurement in kilograms to stone, multiply the value by 0.157473044418. The conversion factor comes from the relationship between both units and the kilogram.
For example, to convert 5 kg to stone: 5 × 0.157473044418 = 0.787365222089 st.
What is a kilogram?
A kilogram is the SI base unit of mass, equal to 1,000 grams or approximately 2.205 pounds. Originally defined in 1795 as the mass of one liter of water, the kilogram was fixed by a platinum-iridium cylinder from 1889 until 2019, when it was redefined in terms of the Planck constant. It is the only SI base unit whose name carries a prefix.
Common uses of kilograms include: Body weight in most countries; Grocery and produce pricing (price per kg); Shipping and freight weight; Scientific and laboratory mass measurements.
What is a stone?
A stone is a British imperial unit of mass equal to 14 pounds or exactly 6.35029318 kilograms. The stone was historically used across Europe with regionally varying values before Britain standardized it at 14 pounds. It remains in everyday use in the UK and Ireland for body weight despite metrication.
Common uses of stone include: Body weight in the UK and Ireland; Weigh-ins for sports and fitness in Britain; Historical and livestock weight references; Everyday conversational weight in the British Isles.
Kilograms to stone worked examples
Here are some common values converted:
1 kg = 0.157473044418 st 5 kg = 0.787365222089 st 10 kg = 1.57473 st 50 kg = 7.873652 st 100 kg = 15.747304 st
Frequently asked questions
How many stone are in one kilogram?
One kilogram (kg) equals 0.157473044418 stone (st). Multiply any value in kilograms by 0.157473044418 to convert to stone.
How do I convert kilograms to stone?
Multiply the value in kilograms by 0.157473044418. For example, 5 kg × 0.157473044418 = 0.787365222089 st.
How do I convert stone to kilograms?
Multiply the value in stone by 6.350293, or divide by 0.157473044418. Use the swap button on the converter above to reverse the direction.
Is the kilogram to stone conversion exact?
Yes. Since 1959 the international pound is defined as exactly 0.45359237 kg, so all weight conversions between metric and avoirdupois units use exact factors.
What is the formula for kilograms to stone?
The formula is: st = kg × 0.157473044418. This comes from the definition of both units relative to the kilogram.