Convert Inch-Pound-Force to Exajoules
Convert Inch-Pound-Force (in·lbf) to Exajoules (EJ) instantly and accurately.
Conversion Formula
EJ = in·lbf × 1.129848290e-19
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 Exajoules
An exajoule (EJ) is 10¹⁸ J - the scale of global energy consumption. World primary energy supply in 2022 was ~580-610 EJ: coal ~160 EJ; oil ~190 EJ; gas ~145 EJ; nuclear ~26 EJ; wind ~8 EJ; solar PV ~8 EJ. Global electricity generation of ~29,000 TWh = 104 EJ. Solar energy incident on Earth's atmosphere is ~5.5 × 10⁶ EJ/year - approximately 9,000× total human demand. Annual fossil fuel combustion releases ~490 EJ/year, producing ~36.8 Gt CO₂. 1 EJ = 10¹⁸ J = 277.78 TWh = 238.85 Mtoe.
Quick Reference Table
| Inch-Pound-Force (in·lbf) | Exajoules (EJ) |
|---|---|
| 1 in·lbf | 1.13 × 10-19 EJ |
| 2 in·lbf | 2.26 × 10-19 EJ |
| 5 in·lbf | 5.649 × 10-19 EJ |
| 10 in·lbf | 1.13 × 10-18 EJ |
| 25 in·lbf | 2.825 × 10-18 EJ |
| 50 in·lbf | 5.649 × 10-18 EJ |
| 100 in·lbf | 1.13 × 10-17 EJ |