Weight conversion
Gram to Stone converter
Convert g to st instantly, choose the displayed precision, and verify the result with the formula and reference table below.
Stone (st)
Rounded for display only; calculations retain full precision.
Rounding and precision rules
- Convr calculates first and rounds the displayed result only once, at the final step.
- The default is a maximum of 6 decimal places; trailing zeros are removed.
- Very small values that would appear as zero, and values of 10¹² or more, use scientific notation.
- Display precision is not measurement uncertainty. For scientific, engineering, or regulated work, retain only the digits justified by the source measurement.
Practical context
Understanding this conversion
Grams measure relatively small metric masses, while stone is a British unit mainly retained for human body weight. The scale difference makes this conversion most useful for aggregated gram values.
Results are shown as decimal stone. For customary reporting, the fractional part may instead be converted to pounds using 14 pounds per stone.
Reviewed August 16, 2026.
Calculation
Gram to Stone formula
st = g × 0.000157
Calculations retain full precision and the result is rounded only for display.
Worked example
For 10 g, the result is 0.001575 st. Substitute 10 g into the formula to obtain 0.001575 st.
A numerical value expressed in stone is usually smaller than the same measurement expressed in gram, because 1 g equals 0.000157 st.
Gram to Stone reference table
Common values rounded to a maximum of 6 decimal places.
| Gram (g) | Stone (st) |
|---|---|
| 1 g | 0.000157 st |
| 5 g | 0.000787 st |
| 10 g | 0.001575 st |
| 50 g | 0.007874 st |
| 100 g | 0.015747 st |
Understanding the units
About Gram and Stone
Gram (g)
One gram (g) equals 0.001 kg, the base relationship used for this weight conversion.
Stone (st)
One stone (st) equals 6.35029318 kg, the base relationship used for this weight conversion.
When this conversion is useful
Gram to Stone conversion is useful for shipping, recipes, product specifications, laboratory work, and body-weight records. It lets you compare the same mass or weight across documents, tools, or standards that use different units.
Learn with Convr
Conversion guides
Metric vs Imperial Units: A Practical Comparison
Understand how metric, US customary, and Imperial units differ, where each system is used, and how to convert between them reliably.
Read guide →FoundationsSignificant Figures and Rounding in Unit Conversions
Learn when to round conversion results, how significant figures preserve measurement meaning, and why more decimals do not guarantee more accuracy.
Read guide →Answers at a glance
Frequently asked questions
How many grams are in one stone?
One stone equals exactly 6,350.29318 grams.
Why is a gram value in stone usually very small?
A stone is a large unit equal to 14 pounds, so an individual gram is only a small fraction of one stone.
How does Convr round Gram to Stone results?
Convr keeps full numeric precision during the calculation and rounds only the displayed result. The default is a maximum of 6 decimal places, with selectable precision on this page.
Can I convert negative or decimal gram values?
Yes. The converter accepts positive, negative, decimal, and scientific-notation values. Negative values are physically meaningful for some scales, such as temperature, but not for every measured quantity.
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