Convert weight and mass units — kilograms, pounds, grams, ounces, tons, carats and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 st | 97.9983 gr | |
| 0.01 st | 979.983 gr | |
| 0.1 st | 9799.83 gr | |
| 1 st | 97998.3 gr | |
| 5 st | 489992 gr | |
| 10 st | 979983 gr | |
| 50 st | 4.89992e+06 gr | |
| 100 st | 9.79983e+06 gr | |
| 1000 st | 9.79983e+07 gr |
The Milligram (mg) and the Gram (g) are both units of weight & mass. Converting between them is straightforward using the formula above.
Formula: 1 st = 97998.3 gr
This converter uses internationally recognized conversion factors. All calculations are performed client-side in your browser — no data is sent to any server.
| Stone (st) | Grain (gr) | Real-world context |
|---|---|---|
| 0.001 st | 97.9983025 gr | |
| 0.01 st | 979.983 gr | |
| 0.1 st | 9799.8302 gr | |
| 1 st | 97998.3025 gr | |
| 10 st | 979983.0247 gr |
1 stone (st) equals exactly 97998.3025 grains (gr). Use the formula: st × 97998.3025 = gr.
To convert stone to grains, multiply your value in stone by 97998.3025. For example, 5 st × 97998.3025 = 489991.5123 gr.
100 stone = 9,799,830 grains. Calculation: 100 × 97998.3025 = 9,799,830.
To convert grains back to stone, divide by 97998.3025 (or multiply by 1.0204e-05). Example: 10 gr ÷ 97998.3025 = 0.00010204 st.
Yes. This converter uses the internationally recognised exact conversion factor: 1 st = 97998.3025 gr. All calculations are performed in your browser with no rounding until display.
10 stone = 979983.0247 grains. Simply multiply by 97998.3025.
Converting stone to grains is commonly needed for jewellery valuation, gemstone trading, precious metal buying and selling, and hallmarking compliance where one system uses st and another uses gr.
The stone (st) is a British imperial unit of mass equal to exactly 14 avoirdupois pounds or 6.35029318 kilograms. Used almost exclusively in the United Kingdom and Ireland for human body weight, it has no role in scientific, commercial, or international contexts. The stone is not an SI unit and was removed from official UK trade measurement in 1985, though it remains deeply embedded in everyday British culture.
The grain (gr) is the smallest unit in the avoirdupois, troy, and apothecary weight systems, equal to exactly 64.79891 milligrams (0.06479891 g). All three systems share the same grain as base: one avoirdupois pound = 7,000 grains; one troy pound = 5,760 grains. The grain is still used in ballistics (bullet and powder weights) and some pharmaceutical contexts.
One of the oldest English weight units, the stone was referenced as early as the 13th century. Historically its value varied by commodity (8 lb for meat, 12 lb for hemp, 14 lb for wool, 16 lb for glass). King Edward III standardised the wool stone at 14 pounds in 1350, which became the universal English standard. The Weights and Measures Act 1835 formally defined the stone as 14 lb. EU harmonisation abolished the stone for trade in 1985.
Interesting fact: The world record heaviest person weighed 635 kg — exactly 100 stone, illustrating how the stone unit provides digestible reference points for large body weights. British people typically express their weight as, for example, "11 stone 4 pounds."
The grain is among the oldest measurement units in history, derived from the average weight of a grain of barleycorn (or wheat) — a practical standard used in ancient Egypt, Greece, and Rome. England formalised the barleycorn grain in the 15th century as the foundation of its weight system. The British Weights and Measures Act 1824 defined the grain, and the value remains unchanged today.
Interesting fact: The original grain was calibrated by laying dried barleycorns end-to-end — 32 grains equalled one inch in 13th-century England. Today, 9mm pistol bullets typically weigh 115–147 grains (7.5–9.5 g), and gunpowder charges are specified in grains for reloading.