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To convert from Gram (g) to Stone (st), use the following formula:
With is the ratio between the base units Pound (lb) and Gram (g).
Let's convert 5 Gram (g) to Stone (st).
Using the formula:
Therefore, 5 Gram (g) is equal to Stone (st).
Here are some quick reference conversions from Gram (g) to Stone (st):
| Grams | Stones |
|---|---|
| 0.000001 g | st |
| 0.001 g | st |
| 0.1 g | st |
| 1 g | st |
| 2 g | st |
| 3 g | st |
| 4 g | st |
| 5 g | st |
| 6 g | st |
| 7 g | st |
| 8 g | st |
| 9 g | st |
| 10 g | st |
| 20 g | st |
| 30 g | st |
| 40 g | st |
| 50 g | st |
| 100 g | st |
| 1000 g | st |
| 10000 g | st |
For all Weight converters, choose units using the From/To dropdowns above.
A gram (g) is a base unit of mass in the metric system. The plural form is grams.
The gram was initially defined in 1795 by the French National Convention.
Its first definition was based on the mass of one cubic centimeter of pure water at the temperature of its maximum density, which is approximately 4 degrees Celsius (4 °C).
This practical, water-based definition was a revolutionary step toward a standardized and universal system of measurement, moving away from the inconsistent and often confusing units of time.
A gram is much smaller than an ounce, the standard unit of mass in the imperial and US customary systems.
One ounce equals approximately 28.35 grams, which is why grams are preferred for scientific work and for measuring small amounts, such as spices or medicine.
The metric system's decimal structure (for example, 1,000 grams in a kilogram) also makes calculations simpler than in the imperial system.
Although the gram was once tied to water, it's no longer linked to any physical object.
Since 2019, the kilogram — and therefore the gram — is defined by a fundamental constant, the Planck constant (h).
That shift makes the unit stable and reproducible in any properly equipped laboratory, without relying on the old International Prototype of the Kilogram.
The stone (st) is a unit of measurement equal to 14 pounds (lb).
It's part of the imperial system and is still commonly used in a few countries, especially for weighing people.
For use in international contexts or scientific applications, the stone is often converted to the metric system.
One stone is equal to exactly 6.35029318 kilograms (kg).
This precise conversion is used in international trade and science to ensure everyone is using the exact standard measurement.
Although it's an older unit, the stone remains the primary unit of measurement for body weight in the United Kingdom and Ireland.
It's common to hear someone state their weight as a combination of stone and pounds, like "12 stone 6 pounds."
The stone traces its origins back to the medieval English wool trade, where a "stone of wool" referred to a standard 14-pound measure used for buying and selling.
Stones for other goods could vary in weight—for example, a stone of glass was just 5 pounds—but over time, the 14-pound stone became the official legal standard.