Grams to Stones
Convert grams to stones instantly. 1 g = 0.000157473 st. Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert grams to stones
To convert grams to stones, divide by 6350.29318 (multiply by 0.000157473). The relationship is fixed, so the same factor works for any quantity — there is nothing to look up and nothing that changes with temperature, location or context.
st = g × 0.000157473
Grams to Stones conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| Grams | Stones |
|---|---|
| 1 g | 0.0001575 st |
| 2 g | 0.0003149 st |
| 3 g | 0.0004724 st |
| 5 g | 0.0007874 st |
| 10 g | 0.001575 st |
| 20 g | 0.003149 st |
| 25 g | 0.003937 st |
| 50 g | 0.007874 st |
| 100 g | 0.015747 st |
| 500 g | 0.078737 st |
| 1,000 g | 0.157473 st |
What is a gram?
A thousandth of a kilogram, and the practical unit for cooking by weight.
What is a stone?
14 pounds. Still the everyday unit for body weight in the UK and Ireland.
The formula
st = g × 0.000157473
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the Grams to Stones
- Type the number of grams you want to convert.
- Read the result in stones straight away — there is no button to press.
- Check the table below for the values that come up most often, or reverse the conversion with the linked stones to grams page.
Grams to Stones — frequently asked questions
How many stones are in a gram?
One gram equals 0.000157473 st. st = g × 0.000157473
What is the formula to convert grams to stones?
The formula is st = g × 0.000157473. It is an exact definition rather than an approximation, so the conversion never drifts no matter how large the number.
How do I convert stones back to grams?
Divide instead of multiplying: one stone is 6350.29318 g. The reverse converter is linked in the related tools list.
Is this conversion exact?
Yes. Both units are defined against the same base unit by international agreement, so the factor is exact — any rounding you see is only in the display, which you can widen by entering more decimal places.
Is this grams to stones free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
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About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 15, 2026 · Calculation runs client-side · No data collected · Report an error