Convert Stone to US tons
1 stone is 0.01 ton. One stone is exactly 0.007 US tons.
One stone is 0.007 US tons. To convert stone to US tons, multiply by 0.007; to go the other way, divide by 0.007 or multiply by 142.85714. The factor is exact rather than rounded: it follows from NIST Handbook 44. Fourteen pounds.
Factor checked against the defining standard · How we check
- Stone × 0.007
1 * 0.0070.007 ton
1 stone in every weight unit
| Unit | Value | Exact factor |
|---|---|---|
| ounces | 224 oz | × 224 |
| pounds | 14 lb | × 14 |
| stone (as entered) | 1 st | — |
| US tons | 0.007 ton | × 0.007 |
| micrograms | 6,350,293,180 mcg | × 6,350,293,180 |
| milligrams | 6,350,293.18 mg | × 6,350,293.18 |
| centigrams | 635,029.318 cg | × 635,029.318 |
| grams | 6,350.29318 g | × 6,350.29318 |
| kilograms | 6.35029318 kg | × 6.35029318 |
| slugs | 0.4351333024 slug | × 0.435133302402 |
| tonnes | 0.00635029318 t | × 0.00635029318 |
| carats | 31,751.4659 ct | × 31,751.4659 |
| troy ounces | 204.1666667 ozt | × 204.166666667 |
| grains | 98,000 gr | × 98,000 |
| long tons | 0.00625 LT | × 0.00625 |
Factors are entered by hand from NIST Handbook 44 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert stone to US tons? The converter and the working
- 1.Take the measurement in stone.
- 2.Multiply by 0.007 — that is how many US tons fit in one stone.
- 3.To go back the other way, divide by 0.007, or multiply by 142.85714.
Worked example: 25 stone to US tons
- Formula
- st × 0.007 = ton
- Arithmetic
- 25 × 0.007 = 0.18 ton
- Answer
- 25 st = 0.18 ton
The factor is exact, so this figure is exact too — only the display is rounded.
Stone to US tons conversion table
| Stone | US tons |
|---|---|
| 1 st | 0.01 ton |
| 2 st | 0.01 ton |
| 3 st | 0.02 ton |
| 4 st | 0.03 ton |
| 5 st | 0.04 ton |
| 6 st | 0.04 ton |
| 7 st | 0.05 ton |
| 8 st | 0.06 ton |
| 9 st | 0.06 ton |
| 10 st | 0.07 ton |
| 12 st | 0.08 ton |
| 15 st | 0.11 ton |
| 20 st | 0.14 ton |
| 25 st | 0.18 ton |
| 50 st | 0.35 ton |
| 100 st | 0.7 ton |
| 200 st | 1.4 ton |
| 300 st | 2.1 ton |
| 500 st | 3.5 ton |
| 1000 st | 7 ton |
| 2000 st | 14 ton |
| 5000 st | 35 ton |
| 10000 st | 70 ton |
What is a stone?
Fourteen pounds. Still the everyday unit of body weight in Britain and Ireland, and nowhere else.
What is a US ton?
The short ton: 2,000 pounds. A metric tonne is about 10% heavier and a British long ton about 12%.
How many US tons are in a stone?
One stone is 0.007 US tons, exactly. Going the other way, one US ton is 142.85714 stone. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every weight unit here
The whole group — 15 units with their symbols and the size of each one in kilograms — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a stone.
Cite this page
- APA
- Rule Calculator. (2026). Convert Stone to US tons. Rule Calculator. https://rulecalculators.com/convert/stone-to-ton
- MLA
- "Convert Stone to US tons." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/stone-to-ton.
- Chicago
- Rule Calculator. "Convert Stone to US tons." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/stone-to-ton.
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Questions people actually ask
- How many US tons are in a stone?
- 0.007. The short ton: 2,000 pounds. A metric tonne is about 10% heavier and a British long ton about 12%.
- How do I convert US tons back to stone?
- Divide by 0.007, or multiply by 142.85714 — they are the same operation.
Other weight conversions
US tons to stone — the same conversion the other way.