Convert Stone to Kilogram (st to kg)
Instant precision conversion from Stone (st) to Kilogram (kg) in Mass.
⚡ Direct Answer: 1 st to kg
1 Stone (st) equals exactly 6.35029 Kilogram (kg).
To convert from Stone to Kilogram, multiply the quantity by 6.35029 (or divide by 0.157473).
📐 How Stone (st) and Kilogram (kg) Relate
In metrology, mass quantifies inertial and gravitational mass (quantity of matter). Within this domain, Stone (st) and Kilogram (kg) originate from SI metric mass units and avoirdupois imperial/customary units. Standardized under BIPM and CGPM metrology definitions (1 avoirdupois pound = 0.45359237 kg).
Because both Stone and Kilogram belong to the linear mass domain, conversion between them is strictly proportional. The exact conversion factor (6.35029) guarantees zero precision drift across mathematical calculations.
🎯 Common Practical Applications
UK & Commonwealth Personal Fitness Tracking
Converting traditional British stone and pound scale readouts into metric kilograms for modern fitness apps.
Combat Sports & Martial Arts Weigh-Ins
Reconciling British boxing, MMA, and wrestling weight divisions with international metric sanctioning standards.
Historical Genealogy & Military Archives
Interpreting historic Commonwealth enlistment, medical, and immigration records recorded in stone.
Reverse Conversion Option
Need to convert other mass units? Explore all combinations in the full Mass converter.
Stone to Kilogram Conversion Table (1 to 1000)
| Stone (st) | Kilogram (kg) | Kilogram (kg) | Stone (st) |
|---|---|---|---|
| 1 st | 6.35029 kg | 1 kg | 0.157473 st |
| 2 st | 12.70058 kg | 2 kg | 0.314946 st |
| 3 st | 19.05087 kg | 3 kg | 0.472419 st |
| 5 st | 31.75145 kg | 5 kg | 0.787366 st |
| 10 st | 63.5029 kg | 10 kg | 1.574731 st |
| 15 st | 95.25435 kg | 15 kg | 2.362097 st |
| 20 st | 127.0058 kg | 20 kg | 3.149462 st |
| 25 st | 158.75725 kg | 25 kg | 3.936828 st |
| 50 st | 317.5145 kg | 50 kg | 7.873656 st |
| 75 st | 476.27175 kg | 75 kg | 11.810484 st |
| 100 st | 635.029 kg | 100 kg | 15.747312 st |
| 250 st | 1587.5725 kg | 250 kg | 39.368281 st |
| 500 st | 3175.145 kg | 500 kg | 78.736562 st |
| 1000 st | 6350.29 kg | 1000 kg | 157.473123 st |
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Frequently Asked Questions
How many Kilogram in 1 Stone?
1 Stone (st) equals exactly 6.35029 Kilogram (kg). 1 Kilogram (kg) equals approximately 0.157473 Stone (st). Formula: st ≈ kg × 0.15747312.
How to convert Stone to Kilogram?
To convert from Stone to Kilogram, multiply the quantity by 6.35029 (or divide by 0.157473). Mathematical formula: kg = st × 6.35029.
What is an example calculation converting Stone to Kilogram?
To convert 10 Stone to Kilogram: multiply 10 by the conversion factor 6.35029 to get exactly 63.5029 Kilogram (kg).
How to convert back from Kilogram to Stone?
To convert from Kilogram to Stone, multiply by the inverse factor 0.157473 (or divide by 6.35029). Formula: st = kg × 0.15747312.