Convert weight and mass units — kilograms, pounds, grams, ounces, tons, carats and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 gr | 7.143e-11 ton | |
| 0.01 gr | 7.143e-10 ton | |
| 0.1 gr | 7.14298e-09 ton | |
| 1 gr | 7.14298e-08 ton | |
| 5 gr | 3.57149e-07 ton | |
| 10 gr | 7.14298e-07 ton | |
| 50 gr | 3.57149e-06 ton | |
| 100 gr | 7.14298e-06 ton | |
| 1000 gr | 7.14298e-05 ton |
The Milligram (mg) and the Gram (g) are both units of weight & mass. Converting between them is straightforward using the formula above.
Formula: 1 gr = 7.142975e-8 ton
This converter uses internationally recognized conversion factors. All calculations are performed client-side in your browser — no data is sent to any server.
| Grain (gr) | US Short Ton (ton) | Real-world context |
|---|---|---|
| 1 gr | 7.1430e-08 ton | grain of wheat |
| 1000 gr | 7.1430e-05 ton | |
| 1,000,000 gr | 0.07142975 ton | |
| 1.0000e+09 gr | 71.4297525 ton | |
| 1.0000e+12 gr | 71429.7525 ton |
1 grain (gr) equals exactly 7.1430e-08 US short tons (ton). Use the formula: gr × 7.1430e-08 = ton.
To convert grains to US short tons, multiply your value in grains by 7.1430e-08. For example, 5 gr × 7.1430e-08 = 3.5715e-07 ton.
100 grains = 7.1430e-06 US short tons. Calculation: 100 × 7.1430e-08 = 7.1430e-06.
To convert US short tons back to grains, divide by 7.1430e-08 (or multiply by 13,999,769). Example: 10 ton ÷ 7.1430e-08 = 139,997,685 gr.
Yes. This converter uses the internationally recognised exact conversion factor: 1 gr = 7.1430e-08 ton. All calculations are performed in your browser with no rounding until display.
10 grains = 7.1430e-07 US short tons. Simply multiply by 7.1430e-08.
Converting grains to US short tons is commonly needed for jewellery valuation, gemstone trading, precious metal buying and selling, and hallmarking compliance where one system uses gr and another uses ton.
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.
The US short ton (commonly just "ton" in American usage) equals exactly 2,000 avoirdupois pounds or approximately 907.18474 kilograms. It is the standard bulk commodity unit for coal, steel, cement, and freight in the United States. The "short" qualifier distinguishes it from the UK long ton (2,240 lb) and metric ton (1,000 kg).
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.
The short ton emerged in the United States as commerce adopted 2,000 pounds as a round-number bulk standard, diverging from the British 2,240-lb long ton. It was codified in the US Customary system in the 19th century. US coal production, steel output, and grain yields are still reported in short tons domestically, though international trade uses metric tons. The US is one of only three countries (with Myanmar and Liberia) not officially on the metric system.
Interesting fact: A fully loaded standard US freight car carries approximately 100 short tons of cargo. The US historically produced ~1 billion short tons of coal per year; modern US coal consumption has fallen to about 400–500 million short tons annually.