Convert Inch-Pound-Force to Terajoules
Convert Inch-Pound-Force (in·lbf) to Terajoules (TJ) instantly and accurately.
Conversion Formula
TJ = in·lbf × 1.129848290e-13
About Inch-Pound-Force
An inch-pound-force (in·lbf) is the work done by one pound-force through one inch - exactly 0.11298482902761670 J (= 1/12 ft·lbf). It is the dominant torque unit for small fasteners and precision instruments in the US: a #6-32 screw in aluminium is torqued to 4-6 in·lbf; a dental implant abutment screw to ~25-30 Ncm (2.2-2.7 in·lbf). Hobby servo motor torque is quoted in oz·in (1 in·lbf = 16 oz·in). Bicycle stem bolts are typically 4-6 Nm (35-53 in·lbf). 1 in·lbf = 0.11298 J = 1/12 ft·lbf = 11.298 Ncm.
About Terajoules
A terajoule (TJ) is 10¹² J - the scale of nuclear yields in the kiloton range and large industrial accidents. One kiloton of TNT = 4.184 TJ; the Hiroshima bomb (15 kt) released ~62.8 TJ. The Halifax Explosion (1917) released ~3 TJ. A 500 MW coal plant consumes ~51.4 TJ/h of thermal input. Daily primary energy of Denmark is ~250-300 TJ; the UK ~3,800 TJ/day. A 1 GW nuclear reactor at 90% capacity factor generates ~77.7 TJ/day. 1 TJ = 10¹² J = 277,778 kWh = 277.78 MWh = 23.88 ktoe.
Quick Reference Table
| Inch-Pound-Force (in·lbf) | Terajoules (TJ) |
|---|---|
| 1 in·lbf | 1.13 × 10-13 TJ |
| 2 in·lbf | 2.26 × 10-13 TJ |
| 5 in·lbf | 5.649 × 10-13 TJ |
| 10 in·lbf | 1.13 × 10-12 TJ |
| 25 in·lbf | 2.825 × 10-12 TJ |
| 50 in·lbf | 5.649 × 10-12 TJ |
| 100 in·lbf | 1.13 × 10-11 TJ |