Convert Long Ton-Force to Kilonewtons
Convert Long Ton-Force (tf (UK)) to Kilonewtons (kN) instantly and accurately.
Conversion Formula
kN = tf (UK) × 9.964016418
About Long Ton-Force
One long ton-force is the gravitational force on an imperial long ton (2,240 lb = 20 × 112 lb hundredweight) - approximately 9,964 N. The long ton was the traditional British ton; long ton-force appears in Royal Navy vessel displacement records, British Admiralty anchor chain standards, pre-metrication UK bridge live load codes, and Australian/South African mining bolt pull-out specifications. It sits between short ton-force (8,896 N) and metric tonne-force (9,807 N) - about 12% heavier than a short ton-force. 1 long tf = 2,240 lbf = 9,964.02 N.
About Kilonewtons
A kilonewton (kN) is 1,000 N - the standard force unit for structural engineering outside North America. A 70 kg person exerts ~0.687 kN; a heavy goods vehicle axle 100-130 kN; a loaded Boeing 747 on its landing gear ~2,800 kN. Eurocode and BS EN structural codes express beam loads and foundation reactions in kN and bending moments in kN·m. Universal testing machines for materials testing are rated 10-10,000 kN. Prestressed concrete tendons are stressed to 100-250 kN each. 1 kN = 1,000 N = 224.81 lbf = 101.97 kgf.
Quick Reference Table
| Long Ton-Force (tf (UK)) | Kilonewtons (kN) |
|---|---|
| 1 tf (UK) | 9.96402 kN |
| 2 tf (UK) | 19.928 kN |
| 5 tf (UK) | 49.8201 kN |
| 10 tf (UK) | 99.6402 kN |
| 25 tf (UK) | 249.1 kN |
| 50 tf (UK) | 498.201 kN |
| 100 tf (UK) | 996.402 kN |