ConvBolt — Unit ConverterGrams to Stone Converter
Converting grams to stone is a multiplication by a fixed factor: 1 g = 0.000157473 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 gram works out to 0.000157473 st, the stone is the far smaller unit of the two: a figure given in stone always carries a smaller number than the same measurement in gram. A chart drawn in g can hide that, so check which label the axis uses before you compare two readings.
Where a legal or postal limit is set in stone, the same limit expressed in grams has to be exact — an overshoot of even one unit can change the chargeable band.
The conversion factor used here is 0.000157473 st per gram (9 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 g a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 6350.293 g per st, the exact reciprocal, so a round trip through both pages returns your original number.
Grams to Stone formula
Use this formula to convert any gram value to stone:
Worked example: 100 g × 0.000157473 = 0.0157473 st.
Grams to Stone conversion table
| Grams (g) | Stone (st) |
|---|---|
| 0.5 g | 7.8737e-5 st |
| 1 g | 0.000157473 st |
| 2 g | 0.0003149461 st |
| 5 g | 0.0007873652 st |
| 10 g | 0.00157473 st |
| 20 g | 0.003149461 st |
| 50 g | 0.007873652 st |
| 100 g | 0.0157473 st |
| 500 g | 0.07873652 st |
| 1000 g | 0.157473 st |
How to convert grams to stone
Multiply the gram value by 0.000157473 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 Grams converter instead of dividing by hand; both pages use the same source factors. For every other g conversion in one place, see the g conversion hub.
Frequently asked questions
How many stone are in 1 gram?
1 gram = 0.000157473 st.
What is 100 grams in stone?
100 g = 0.0157473 st.
Is converting grams to stone the same as stone to grams?
No — the direction changes the multiplier. The reverse conversion (1 st = 6350.293 g) is on the Stone to Grams page.
Related conversions
Try the ConvBolt Unit Converter for any other weight unit, browse the Weight conversions, or read our conversion guides.