This converter turns grams into stones instantly, using the exact factor 1 gram = 0.0001574730444 stones. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
One thousandth of a kilogram — the workhorse unit of cooking and postage. Fourteen pounds — still the customary way to state body weight in the UK and Ireland.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
grams- The amount you are converting, measured in grams
0.0001574730444- The exact number of stones in one gram
stones- The converted result
How it works, step by step
- Enter the number of grams you want to convert.
- The value is multiplied by 0.0001574730444, the exact conversion factor.
- The result is displayed in stones, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 grams
Multiply 5 by 0.00015747304. That gives 0.000787 stones. A quick sanity check: one gram is smaller than one stone, so the number should get smaller — and it does.
Converting 72 grams
72 × 0.00015747304 = 0.011338 stones. Working backwards, 0.011338 ÷ 0.00015747304 returns 72 grams, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many stones are in one gram?
Exactly 0.0001574730444. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert grams to stones?
Stones = grams × 0.0001574730444. To reverse it, divide instead: grams = stones ÷ 0.0001574730444, which is the same as multiplying by 6350.29318.
Is the gram bigger than the stone?
No. One gram is only 0.000157473 of a stone, so the stone is the larger unit.
Why does my answer differ slightly from other grams to stones converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a gram?
One thousandth of a kilogram — the workhorse unit of cooking and postage.
What is a stone?
Fourteen pounds — still the customary way to state body weight in the UK and Ireland.
Grams to stones reference table
| Grams | Stones |
|---|---|
| 0.5 g | 0.000079 st |
| 1 g | 0.000157 st |
| 2 g | 0.000315 st |
| 3 g | 0.000472 st |
| 5 g | 0.000787 st |
| 10 g | 0.001575 st |
| 15 g | 0.002362 st |
| 20 g | 0.003149 st |
| 25 g | 0.003937 st |
| 50 g | 0.007874 st |
| 75 g | 0.01181 st |
| 100 g | 0.015747 st |
| 250 g | 0.039368 st |
| 500 g | 0.078737 st |
| 1000 g | 0.157473 st |
Exact factor: 1 gram = 0.0001574730444 stones. Values rounded for display.