1 stone equals 6350.29 grams. To convert stones to grams, multiply the stone value by 6350.29. For quick reference: 1 st = 6350.29 g, 5 st = 31751.5 g, 10 st = 63502.9 g, 100 st = 635029 g.
FormulaGrams = Stones × 6350.29
Quick
How to convert stones to grams
1
Take your value
Start with your value in stones.
2
Multiply by 6350.29
Multiply the stone value by 6350.29. This is the exact conversion factor from stones to grams.
3
Read the result
The product is your value in grams. For example, 5 st × 6350.29 = 31751.5 g.
Conversion formula
The exact factor from stones to grams is 6350.29.
Grams = Stones × 6350.29
Stones to Grams conversion table
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
Conversion table from stones to grams
Stones (st)
Grams (g)
0.1 st
635.03 g
0.25 st
1587.6 g
0.5 st
3175.1 g
1 st
6350.3 g
1.5 st
9525.4 g
2 st
12701 g
2.5 st
15876 g
3 st
19051 g
4 st
25401 g
5 st
31751 g
6 st
38102 g
7 st
44452 g
8 st
50802 g
9 st
57153 g
10 st
63503 g
12 st
76204 g
15 st
95254 g
18 st
114305 g
20 st
127006 g
25 st
158757 g
30 st
190509 g
35 st
222260 g
40 st
254012 g
45 st
285763 g
50 st
317515 g
60 st
381018 g
70 st
444521 g
75 st
476272 g
80 st
508023 g
90 st
571526 g
100 st
635029 g
120 st
762035 g
125 st
793787 g
150 st
952544 g
175 st
1111301 g
180 st
1143053 g
200 st
1270059 g
225 st
1428816 g
250 st
1587573 g
275 st
1746331 g
300 st
1905088 g
350 st
2222603 g
400 st
2540117 g
450 st
2857632 g
500 st
3175147 g
600 st
3810176 g
750 st
4762720 g
1000 st
6350293 g
2000 st
12700586 g
5000 st
31751466 g
Real-world reference
An average adult man in the UK weighs 12–14 st. A medium-sized dog weighs about 3 st. In grams, that gives you: 1 st = 6350.29 g, 10 st = 63502.9 g, 100 st = 635029 g.
Frequently asked questions
How many grams are in 1 stone?
1 stone equals 6350.29 grams.
How do I convert stones to grams?
Multiply the stone value by 6350.29. So x st × 6350.29 = the equivalent in g.
What is 5 stones in grams?
5 stones equals 31751.5 grams.
What is 10 stones in grams?
10 stones equals 63502.9 grams.
What is 100 stones in grams?
100 stones equals 635029 grams.
How do I convert back from grams to stones?
Multiply the gram value by 0.000157473. For example, 1 g = 0.000157473 st.
Is the stone bigger than the gram?
Yes. 1 stone is larger than 1 gram — specifically 6350.29 times larger.
Are these conversion factors exact?
Yes. Since the 1959 international yard and pound agreement, imperial/US units are defined exactly in terms of metric units, so the factor used here (6350.29) is exact within IEEE 754 double precision.
About the stone and the gram
The stone
The stone (st) equals exactly 14 pounds (about 6.35 kg). It is still widely used in the United Kingdom and Ireland to state body weight, even though it is no longer legal for trade. The stone was originally a real stone used by merchants as a counterweight on balances; its weight varied by region and trade until standardized in the late 19th century.
The gram
The gram (g) is a metric unit of mass equal to one-thousandth of a kilogram. It is the everyday unit for food labeling, postage, jewelry, and laboratory measurements. The 2019 SI redefinition fixed the kilogram (and therefore the gram) in terms of Planck's constant, ending more than a century of dependence on a physical prototype.