ConvBolt — Unit ConverterStone to US tons Converter
Converting stone to US tons is a multiplication by a fixed factor: 1 st = 0.007 ton. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.
Because one stone works out to 0.007 ton, the us ton is the far smaller unit of the two: a figure given in us ton always carries a smaller number than the same measurement in stone. A chart drawn in st can hide that, so check which label the axis uses before you compare two readings.
Cooking and shipping are the two places this pair appears most: a kitchen scale reads in stone while a recipe or label is written in US tons, and a courier tariff built on US tons still has to be checked against a scale showing stone.
The conversion factor used here is 0.007 ton per stone (3 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 st a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 142.8571 st per ton, the exact reciprocal, so a round trip through both pages returns your original number.
Stone to US tons formula
Use this formula to convert any stone value to US tons:
Worked example: 100 st × 0.007 = 0.7 ton.
Stone to US tons conversion table
| Stone (st) | US tons (ton) |
|---|---|
| 0.5 st | 0.0035 ton |
| 1 st | 0.007 ton |
| 2 st | 0.014 ton |
| 5 st | 0.035 ton |
| 10 st | 0.07 ton |
| 20 st | 0.14 ton |
| 50 st | 0.35 ton |
| 100 st | 0.7 ton |
| 500 st | 3.5 ton |
| 1000 st | 7 ton |
How to convert stone to US tons
Multiply the stone value by 0.007 to get the equivalent in US tons. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.
If you need the opposite direction, use the US tons to Stone converter instead of dividing by hand; both pages use the same source factors. For every other st conversion in one place, see the st conversion hub.
Frequently asked questions
How many US tons are in 1 stone?
1 stone = 0.007 ton.
What is 100 stone in US tons?
100 st = 0.7 ton.
Is converting stone to US tons the same as US tons to stone?
No — the direction changes the multiplier. The reverse conversion (1 ton = 142.8571 st) is on the US tons to Stone page.
Related conversions
Try the ConvBolt Unit Converter for any other weight unit, browse the Weight conversions, or read our conversion guides.