Convert weight and mass units — kilograms, pounds, grams, ounces, tons, carats and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 L/T | 15679.7 gr | |
| 0.01 L/T | 156797 gr | |
| 0.1 L/T | 1.56797e+06 gr | |
| 1 L/T | 1.56797e+07 gr | |
| 5 L/T | 7.83987e+07 gr | |
| 10 L/T | 1.56797e+08 gr | |
| 50 L/T | 7.83987e+08 gr | |
| 100 L/T | 1.56797e+09 gr | |
| 1000 L/T | 1.56797e+10 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 L/T = 15679740 gr
This converter uses internationally recognized conversion factors. All calculations are performed client-side in your browser — no data is sent to any server.
| UK Long Ton (L/T) | Grain (gr) | Real-world context |
|---|---|---|
| 1.0000e-06 L/T | 15.6797377 gr | |
| 0.001 L/T | 15679.7377 gr | |
| 0.01 L/T | 156797.3765 gr | |
| 0.1 L/T | 1,567,974 gr | |
| 1 L/T | 15,679,738 gr | 2240 lb / large car |
1 uk long ton (L/T) equals exactly 15,679,738 grains (gr). Use the formula: L/T × 15,679,738 = gr.
To convert UK long tons to grains, multiply your value in UK long tons by 15,679,738. For example, 5 L/T × 15,679,738 = 78,398,688 gr.
100 UK long tons = 1.5680e+09 grains. Calculation: 100 × 15,679,738 = 1.5680e+09.
To convert grains back to UK long tons, divide by 15,679,738 (or multiply by 6.3777e-08). Example: 10 gr ÷ 15,679,738 = 6.3777e-07 L/T.
Yes. This converter uses the internationally recognised exact conversion factor: 1 L/T = 15,679,738 gr. All calculations are performed in your browser with no rounding until display.
10 UK long tons = 156,797,377 grains. Simply multiply by 15,679,738.
Converting UK long tons to grains is commonly needed for jewellery valuation, gemstone trading, precious metal buying and selling, and hallmarking compliance where one system uses L/T and another uses gr.
The UK long ton (symbol L/T, also "imperial ton" or "gross ton") equals 2,240 avoirdupois pounds or 1,016.0469088 kilograms. Used in Britain for coal and shipping, it is slightly larger than both the US short ton (2,000 lb) and the metric ton (1,000 kg). Britain adopted metric units in 1965 and the long ton is no longer used in new UK trade contracts, though it appears in historical records.
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 long ton traces to medieval England, where a "wine tun" was a large barrel of ~252 gallons. A standard ship's cargo unit ("ton burden") evolved into a 2,240-pound standard because 2,240 lb = 20 hundredweight (each of 112 lb) — convenient for counting by the hundredweight. The Coal Industry Act 1831 formalised the long ton for coal. British Overseas Territories and some US steel industry sectors still use it.
Interesting fact: HMS Victory, Nelson's flagship at Trafalgar (1805), was rated at 2,162 long tons displacement. Modern international shipping uses metric tons (deadweight tonnage), but engineers working with pre-1965 British specifications regularly need long ton conversions.
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.