Ton-force (long) (tonf (UK))
2,240 pounds-force (9.964 kN), the weight of a long ton.
1 ton-force (long) = 9,964.016418 newtons (approximately).
About the ton-force (long)
Weighing a British long ton of mass under standard gravity gives this unit: 2,240 pounds-force, or about 9.964 kN (the more exact figure is 9.96401641818352 kN). It belongs to the imperial family and, per Wikipedia, equals roughly 1,016.05 kilograms-force, which makes it a heavy unit suited to large structures, ships and machinery described in British units.
Confusion with its neighbours is the main hazard. The short ton-force of 2,000 lbf, common in the United States, is about 8.896 kN, so one long ton-force equals 1.12 of them. The metric tonne-force, 1,000 kgf, is 9.80665 kN, a little smaller, since the long ton-force is about 1.016 of it. NIST lists only the 2,000 lbf version, a hint of how rarely the long form is now met.
Sources: Wikipedia: Ton-force; Wikipedia: Pound (force); NIST SP 811, Appendix B.8
Ton-force (long) conversion chart
1 ton-force (long) expressed in every other force unit:
| Unit | 1 ton-force (long) |
|---|---|
| Newtons | 9,964.016418 |
| Kilonewtons | 9.964016418 |
| Pounds-force | 2,240 |
| Kilograms-force | 1,016.046909 |
| Meganewtons | 0.009964016418 |
| Millinewtons | 9,964,016.418 |
| Ounces-force | 35,840 |
| Grams-force | 1,016,046.909 |
| Poundals | 72,069.86877 |
| Dynes | 996,401,641.8 |
| Kips | 2.24 |
| Tons-force (short) | 1.12 |
| Tonnes-force | 1.016046909 |
| Sthènes | 9.964016418 |
More Imperial (British) units
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