ConvBolt — Unit ConverterTonnes to Stone Converter
Converting tonnes to stone is a multiplication by a fixed factor: 1 t = 157.473 st. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.
Because one tonne works out to 157.473 st, the stone is the far larger unit of the two: a figure given in stone always carries a larger number than the same measurement in tonne. A chart drawn in t 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 tonnes while a recipe or label is written in stone, and a courier tariff built on stone still has to be checked against a scale showing tonnes.
The conversion factor used here is 157.473 st per tonne (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 t a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 0.006350293 t per st, the exact reciprocal, so a round trip through both pages returns your original number.
Tonnes to Stone formula
Use this formula to convert any tonne value to stone:
Worked example: 100 t × 157.473 = 15747.3 st.
Tonnes to Stone conversion table
| Tonnes (t) | Stone (st) |
|---|---|
| 0.5 t | 78.73652 st |
| 1 t | 157.473 st |
| 2 t | 314.9461 st |
| 5 t | 787.3652 st |
| 10 t | 1574.73 st |
| 20 t | 3149.461 st |
| 50 t | 7873.652 st |
| 100 t | 15747.3 st |
| 500 t | 78736.52 st |
| 1000 t | 157473 st |
How to convert tonnes to stone
Multiply the tonne value by 157.473 to get the equivalent in stone. 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 Stone to Tonnes converter instead of dividing by hand; both pages use the same source factors. For every other t conversion in one place, see the t conversion hub.
Frequently asked questions
How many stone are in 1 tonne?
1 tonne = 157.473 st.
What is 100 tonnes in stone?
100 t = 15747.3 st.
Is converting tonnes to stone the same as stone to tonnes?
No — the direction changes the multiplier. The reverse conversion (1 st = 0.006350293 t) is on the Stone to Tonnes page.
Related conversions
Try the ConvBolt Unit Converter for any other weight unit, browse the Weight conversions, or read our conversion guides.