Convert Long Ton-Force to Dynes
Convert Long Ton-Force (tf (UK)) to Dynes (dyn) instantly and accurately.
Conversion Formula
dyn = tf (UK) × 996401641.8
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 Dynes
The dyne (dyn) is the CGS unit of force - the force to accelerate 1 g at 1 cm/s² - exactly 10⁻⁵ N. Surface tension is universally expressed in dyn/cm (= mN/m): water 72.8 dyn/cm; mercury 487 dyn/cm; ethanol 22.1 dyn/cm. Astrophysics and plasma physics papers use dyn/cm² for pressure; solar photon radiation pressure at Earth's orbit is ~4.56 × 10⁻⁵ dyn/cm². The dyne pairs naturally with other CGS units (poise, erg, gauss), which is why it persists in stellar modelling and X-ray binary spectra literature. 1 dyn = 10⁻⁵ N = 10 µN.
Quick Reference Table
| Long Ton-Force (tf (UK)) | Dynes (dyn) |
|---|---|
| 1 tf (UK) | 996402000 dyn |
| 2 tf (UK) | 1.993 × 109 dyn |
| 5 tf (UK) | 4.982 × 109 dyn |
| 10 tf (UK) | 9.964 × 109 dyn |
| 25 tf (UK) | 2.491 × 1010 dyn |
| 50 tf (UK) | 4.982 × 1010 dyn |
| 100 tf (UK) | 9.964 × 1010 dyn |