Stone to Kilograms Converter
Weight conversion workspace
Enter a decimal, fraction or quick calculation — for example 12.5, 3/8 or (12*4)+6.5.
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Compare all weight units
One input, every supported equivalent. Select any row as the main target.
| Unit | Equivalent | Target action |
|---|---|---|
| Kilograms kg | 6.35 | TargetSelected |
| Pounds lb | 14 | |
| Grams g | 6,350.29 | |
| Metric Tonnes t | 0.01 | |
| Ounces oz | 224 | |
| Stone (14 lb) st | 1 | SourceSource |
Use this stone-to-kilogram converter for body-weight records and UK or Irish measurements that need a clear metric equivalent without mental arithmetic.
Curated referenceFormula
kilograms = stone × 6.35029318
Calculations use the central unit catalog and preserve precision until the result is formatted.
Reference conversions
Fixed reference values use en-US formatting and up to 12 significant digits.
| Input | From | To | Result |
|---|---|---|---|
| 1 | Stone (14 lb) | Kilograms | 6.35029318 |
| 5 | Stone (14 lb) | Kilograms | 31.7514659 |
| 10 | Stone (14 lb) | Kilograms | 63.5029318 |
| 12 | Stone (14 lb) | Kilograms | 76.20351816 |
| 15 | Stone (14 lb) | Kilograms | 95.2543977 |
| 20 | Stone (14 lb) | Kilograms | 127.0058636 |
Related weight conversions
Curated references with worked examples, formulas and the full interactive converter.
Frequently asked questions
How do I convert stone (14 lb) to kilograms?
Use kilograms = stone × 6.35029318. Enter a value in the calculator to keep full numeric precision until the result is formatted.
What is 1 st in kg?
1 st equals 6.35029318 kg.
Are the displayed results rounded?
The conversion uses the sourced catalog definitions and retains full JavaScript number precision until display formatting is applied.
Accuracy & transparency
Sources & methodology
Calculations keep full numeric precision until display formatting. These references describe the definitions, variants or factors used; links do not imply affiliation.
SI definitions and published coefficients for selected non-SI units.
Reference factors and named variants for commonly used units, including US liquid cooking measures and British stone.
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