Stone to Kilograms
One stone is 6.3503 kilograms. This st to kg page has the formula, a conversion table, three worked examples and answers to common questions.
Did this tool work for you?
Stone to kilograms: the relationship and formula
This page converts stone (st) to kilograms (kg). In the converter's unit table, one stone equals 6.35029318 kilograms, so every result here comes from a single multiplication by 6.35029318.
Reading the formula backwards gives st = kg ÷ 6.35029318. Dividing by 6.35029318 undoes the multiplication, and 1 kg equals 0.15747304 st.
Stone to kilograms reference table
This lookup list shows 12 st values and what they become in kg. The step from one row to the next is not constant, but the ratio of 6.35029318 between the columns is.
| Stone (st) | Kilograms (kg) |
|---|---|
| 0.25 | 1.587573295 |
| 1 | 6.35029318 |
| 1.5 | 9.52543977 |
| 3 | 19.05087954 |
| 6 | 38.10175908 |
| 8 | 50.80234544 |
| 15 | 95.2543977 |
| 40 | 254.0117272 |
| 75 | 476.2719885 |
| 150 | 952.543977 |
| 400 | 2,540.117272 |
| 2,000 | 12,700.58636 |
Every row comes from the same function as the widget and keeps its rounding, so a figure copied from this table matches what the converter returns for that input.
Examples: turning stone into kilograms
Convert 1.5 st first. Using 6.35029318 as the multiplier, the answer displayed is 9.52543977 kg.
A second amount, 12 stone, becomes 76.20351816 kilograms. Converting that result in the opposite direction recovers about 12 st.
Working backwards, an amount of 950 kg corresponds to 149.5993922 st.
Going from kilograms to stone
A dedicated page covers the opposite direction: Kilograms to Stone. In that case 1 kg = 0.15747304 st.
Units outside this pair can be selected in the main Weight & Mass Converter, which uses the same unit table.
More weight & mass converter pairs
Pages for conversions that share a unit with this one, or sit in the same list:
Frequently asked questions
How many kilograms are in one stone?
Each stone corresponds to 6.35029318 kilograms, which means 63.5029318 kilograms for 10 stone and 635.029318 kilograms for 100 stone.
One kilogram equals how many stone?
One kilogram equals 0.15747304 stone. Ten kilograms equal 1.574730444 stone.
What does 7.5 st come to in kg?
The result is 47.62719885 kg. The widget scales the st figure by 6.35029318 and trims the digits shown.
What precision does the st to kg result use?
Yes, the displayed kg value is trimmed. The converter prints at most 10 significant digits at or above 1, at most 8 below 1, and at most 6 decimals from 1,000 up, using exponent notation for extreme sizes. Two samples from this pair: 0.123456789 st becomes 0.78398681 kg, and 1,234.5678 st becomes 7,839.867481 kg.
How does the widget get from stone to kilograms?
Every unit in this converter stores a factor relative to one shared reference unit. The widget multiplies the input by the factor of stone, then divides by the factor of kilograms; for this pair that nets out to 6.35029318.
Can this converter go from kg to st too?
Yes. The page titled "Kilograms to Stone" covers it, or you can press the swap button in the widget above. The arithmetic is kg × 0.15747304, so 25 kg is 3.93682611 st.
Learn more from an authoritative source:
NISTTemperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and Rankine instantly.
Volume Converter
Convert between litres, millilitres, gallons, cups, fluid ounces, cubic metres, and more.
Area Converter
Convert between square metres, square feet, acres, hectares, square kilometres, and more.
Speed Converter
Convert between km/h, mph, m/s, knots, and Mach number instantly.
Time Unit Converter
Convert between seconds, minutes, hours, days, weeks, months, and years instantly.
Data Storage Converter
Convert between bits, bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes.
Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →