Convert Long Ton-Force to Teranewtons
Convert Long Ton-Force (tf (UK)) to Teranewtons (TN) instantly and accurately.
Conversion Formula
TN = tf (UK) × 9.964016418e-9
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 Teranewtons
One teranewton (TN) is 10¹² N - the force scale of plate tectonics and planetary dynamics. Mantle convection drags tectonic plates with 10¹³-10¹⁵ N per plate, putting the plate-driving slab-pull force (~10¹³ N) firmly in the TN range. Mid-ocean ridge lithosphere sustains several TN per km of spreading length in tension. The tidal force differential across Earth's diameter from the Sun is ~4 × 10¹⁷ N = 4 × 10⁵ TN. Proposed megastructures (space elevators, orbital rings) would also require teranewton-scale structural capacity. 1 TN = 1,000 GN = 10¹² N ≈ 10¹¹ kgf.
Quick Reference Table
| Long Ton-Force (tf (UK)) | Teranewtons (TN) |
|---|---|
| 1 tf (UK) | 9.964 × 10-9 TN |
| 2 tf (UK) | 1.993 × 10-8 TN |
| 5 tf (UK) | 4.982 × 10-8 TN |
| 10 tf (UK) | 9.964 × 10-8 TN |
| 25 tf (UK) | 2.491 × 10-7 TN |
| 50 tf (UK) | 4.982 × 10-7 TN |
| 100 tf (UK) | 9.964 × 10-7 TN |