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Convert Stone to Grams

1 stone is 6,350.29 g. One stone is exactly 6350.29318 grams.

One stone is 6350.2932 grams. To convert stone to grams, multiply by 6350.2932; to go the other way, divide by 6350.2932 or multiply by 1.5747 × 10^-4. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Handbook 44. Fourteen pounds.

Factor checked against the defining standard · How we check

Grams
6,350.29 g
Stone × 6350.2932
1 * 6350.29326,350.293 g

1 stone in every weight unit

1 stone expressed in every weight unit
UnitValueExact factor
ounces224 oz× 224
pounds14 lb× 14
stone (as entered)1 st—
US tons0.007 ton× 0.007
micrograms6,350,293,180 mcg× 6,350,293,180
milligrams6,350,293.18 mg× 6,350,293.18
centigrams635,029.318 cg× 635,029.318
grams6,350.29318 g× 6,350.29318
kilograms6.35029318 kg× 6.35029318
slugs0.4351333024 slug× 0.435133302402
tonnes0.00635029318 t× 0.00635029318
carats31,751.4659 ct× 31,751.4659
troy ounces204.1666667 ozt× 204.166666667
grains98,000 gr× 98,000
long tons0.00625 LT× 0.00625

Factors are entered by hand from NIST Handbook 44 rather than derived from a units library, so the ones that terminate are exact rather than rounded.

How do you convert stone to grams? The converter and the working

  1. 1.Take the measurement in stone.
  2. 2.Multiply by 6350.2932 — that is how many grams fit in one stone.
  3. 3.To go back the other way, divide by 6350.2932, or multiply by 1.5747 × 10^-4.

Worked example: 25 stone to grams

Formula
st × 6350.2932 = g
Arithmetic
25 × 6350.2932 = 158,757.33 g
Answer
25 st = 158,757.33 g

The factor is rounded for display; the figure above is computed from the full value.

Stone to grams conversion table

Stone to grams conversion table
StoneGrams
1 st6,350.29 g
2 st12,700.59 g
3 st19,050.88 g
4 st25,401.17 g
5 st31,751.47 g
6 st38,101.76 g
7 st44,452.05 g
8 st50,802.35 g
9 st57,152.64 g
10 st63,502.93 g
12 st76,203.52 g
15 st95,254.4 g
20 st127,005.86 g
25 st158,757.33 g
50 st317,514.66 g
100 st635,029.32 g
200 st1,270,058.64 g
300 st1,905,087.95 g
500 st3,175,146.59 g
1000 st6,350,293.18 g
2000 st12,700,586.36 g
5000 st31,751,465.9 g
10000 st63,502,931.8 g

What is a stone?

Fourteen pounds. Still the everyday unit of body weight in Britain and Ireland, and nowhere else.

What is a gram?

One thousandth of a kilogram, and the unit nutrition labels use worldwide.

How many grams are in a stone?

One stone is 6350.2932 grams. Going the other way, one gram is 1.5747 × 10^-4 stone. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.

Every weight unit here

The whole group — 15 units with their symbols and the size of each one in kilograms — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a stone.

Source: NIST Handbook 44 — mass and weight

Cite this page

APA
Rule Calculator. (2026). Convert Stone to grams. Rule Calculator. https://rulecalculators.com/convert/stone-to-gram
MLA
"Convert Stone to grams." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/stone-to-gram.
Chicago
Rule Calculator. "Convert Stone to grams." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/stone-to-gram.

The date is when the figures on this page were last checked against their source, not the day you opened it. Add your own access date if your style needs one.

Questions people actually ask

How many grams are in a stone?
6350.2932. One thousandth of a kilogram, and the unit nutrition labels use worldwide.
How do I convert grams back to stone?
Divide by 6350.2932, or multiply by 1.5747 × 10^-4 — they are the same operation.

Other weight conversions

Grams to stone — the same conversion the other way.

Calculators that work in weight