Stones to Kilograms Converter
Enter the weight in stones below to convert it to kilograms.
Convert Stones to Kilograms
Enter a value in stones (st) to convert to kilograms (kg).
Stone to Kilogram Conversion Table
Table showing various stone measurements converted to kilograms. Click any preset value or arrow to load it into the converter.
| Stones (st) | Kilograms (kg) |
|---|---|
| 1 st | 6.3502932 kg |
| 2 st | 12.7005864 kg |
| 5 st | 31.7514659 kg |
| 6 st | 38.1017591 kg |
| 10 st | 63.5029318 kg |
| 12 st | 76.2035182 kg |
| 15 st | 95.2543977 kg |
| 20 st | 127.0058636 kg |
| 24 st | 152.4070363 kg |
| 25 st | 158.7573295 kg |
How to Convert Stones to Kilograms
To convert stones to kilograms, multiply the weight by the following conversion ratio: 6.3502932 kilograms/stone.
Since one stone is equal to 6.3502932 kilograms, you can use this simple formula to convert:
The weight in kilograms is equal to the weight in stones multiplied by 6.3502932.
For example, here's how to convert 12 stones to kilograms using the formula above.
How Many Kilograms Are in a Stone?
There are 6.3502932 kilograms in a stone, which is why we use this value in the formula above.
Our stone to kilogram calculator automatically converts your weight measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Stones and kilograms are both units used to measure weight. Keep reading to learn more about each unit.
What Is a Stone?
A stone is a unit of weight equal to 6.3502932 kilograms (kg), the base unit for weight. British imperial unit equal to 14 pounds (6.35029 kg). [1]
The stone is classified as a US customary and imperial unit of weight. Stones can be abbreviated as st; for example, 1 stone can be written as 1 st.
When working with stones (st) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, stones (st) are widely used across standard weight applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
What Is a Kilogram?
The fundamental SI unit of mass. It serves as a primary reference unit for measuring weight across scientific and practical applications. [2]
The kilogram is classified as an International System of Units (SI) unit of weight. Kilograms can be abbreviated as kg; for example, 1 kilogram can be written as 1 kg.
Although the name "kilogram" begins with the SI prefix "kilo" (1,000 grams), the kilogram (kg) is the sole SI base unit whose definition includes a prefix for historical reasons established by the BIPM.
In practice, kilograms (kg) are widely used across standard weight applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting weight between stones (st) and kilograms (kg), keep full floating-point precision (1 st = 6.3502932 kg; 1 kg = 0.157473 st) during intermediate calculations and round only the final kilogram figure to match your instrument tolerance.
More Stone & Kilogram Conversions
Need to calculate in the opposite direction? Use our kilograms to stones converter (kg to st) to switch your starting unit immediately. You can also explore related tools such as converting pounds to kilograms, converting grams to kilograms, or converting stones to pounds.
Convert from Stones
Weight and volume require ingredient density (g/mL). Choose a USDA FoodData Central verified ingredient below:
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Mass)·Mass & Weight Metrology Standard — Stones (st) to Kilograms (kg)
- [2]NIST HB 44 SpecificationNIST HB 44 (NIST Handbook 44 (Current Ed.))·Unit Specifications: Stone (UK) (st) & Kilogram (kg)
- [3]BIPM ReferenceBIPM (SI Base Unit: Kilogram (kg))·Conversion Factors & Mathematical Basis (st to kg)