How many grams are in one stone?

One stone (14 pounds) contains approximately 6,350 grams.

The UK and Ireland use stones for body weight. A British person says '11 stone 5' rather than '72.1 kilograms' or '72,100 grams.' The stone is essentially unknown outside these countries.

Why do the British use stones when they use grams for food?

Body weight is personal and habitual. Britons learned their weight in stones as children and keep that framework for life. For cooking and shopping, they use grams and kilograms like the rest of metric Europe. Different measurement units for different life domains.

Grams to Stones (g to st) Converter

1 g = 0.0002 st

1 Gram equals 0.0002 Stones (1 g = 0.0002 st). Convert Grams to Stones with formula, table, and examples.

One gram equals approximately 0.000157 stones. The stone (14 pounds, 6,350 grams) contains roughly 6,350 grams. The stone persists in British and Irish culture as the preferred unit for human body weight, while the gram serves the rest of the metric world for everything from cooking to chemistry.

How to Convert Grams to Stones

st = g × 0.000157473

Multiply the value in Grams by 0.000157473

Take your value in Grams
Multiply by 0.000157473
Read the result in Stones

Common Grams to Stones Conversions

Grams (g)	Stones (st)	Status
1 g	0.00015747 st
2 g	0.00031495 st
5 g	0.00078737 st
10 g	0.00157473 st
25 g	0.00393683 st
50 g	0.00787365 st
100 g	0.0157473 st
500 g	0.07873652 st
1,000 g	0.15747304 st

Good to Know About Grams to Stones Conversion

The gram was originally defined as the mass of one cubic centimeter of water at 4 degrees Celsius - an elegant connection between length, volume, and mass that was a founding principle of the metric system. Though the kilogram was redefined using the Planck constant in 2019, the gram retains its intuitive water relationship: one milliliter of water weighs approximately one gram, a fact that makes metric cooking and chemistry beautifully simple.

Grams to Stones: What You Need to Know

A person weighing 70,000 grams (70 kilograms) weighs about 11.02 stone. A British person stepping on a scale thinks in stones; a European thinks in kilograms. Both could convert to grams, but neither would find the resulting six-digit number psychologically appealing. The gram is too small for body weight; the stone is too large for food; each finds its natural domain.

What is a Gram? g

A metric unit of mass equal to one thousandth of a kilogram. Widely used in cooking, nutrition labeling, and science.

Metric cooking nutrition labels postal weight

Learn more about Gram →

What is a Stone? st

A British unit of mass equal to 14 pounds or approximately 6.35 kilograms. Commonly used in the UK and Ireland for body weight.

Imperial body weight (UK/Ireland) horse racing

Learn more about Stone →

Going the other way? Use our Stones to Grams converter.

Grams to Stones FAQ

One stone (14 pounds) contains approximately 6,350 grams.
The UK and Ireland use stones for body weight. A British person says '11 stone 5' rather than '72.1 kilograms' or '72,100 grams.' The stone is essentially unknown outside these countries.
Body weight is personal and habitual. Britons learned their weight in stones as children and keep that framework for life. For cooking and shopping, they use grams and kilograms like the rest of metric Europe. Different measurement units for different life domains.

Non-Frequently Asked Questions About Grams to Stones

Questions nobody should ask - but someone did.

The Briton says 'I weigh 12 stone.' The German hears a number and a word they do not understand. They ask for kilograms; the Briton must calculate: 12 x 14 = 168 pounds, times 0.4536 = 76.2 kilograms. Or they could multiply 12 x 6,350 = 76,200 grams and divide by 1,000. Either way, what should be a simple question becomes a math exercise.
It might be. The British have given up rods, chains, hundredweights, and most other imperial units without protest. But the stone touches personal identity - how people perceive their own bodies. Giving up the stone means rethinking what you weigh in a new numerical framework. That is harder than switching from miles to kilometers, because body weight is intimate in a way that road distance is not.
If a 10-stone person (63,503 grams) eats birthday cake at one party per month (roughly 150 grams per slice), they consume about 1,800 grams of birthday cake annually. That is about 0.028 stone or 0.028% of their body weight in cake per year. By any unit, that seems both reasonable and insufficient.