Convert Inch-Pound-Force to Petajoules
Convert Inch-Pound-Force (in·lbf) to Petajoules (PJ) instantly and accurately.
Conversion Formula
PJ = in·lbf × 1.129848290e-16
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 Petajoules
A petajoule (PJ) is 10¹⁵ J - the national energy policy scale. IEA reports primary energy in PJ/year: Sweden ~600 PJ; Germany ~12,500 PJ; the United States ~93,000 PJ. World total primary energy supply is ~605,000 PJ = 605 EJ. The 1883 Krakatoa eruption released ~200 PJ ≈ 48 megatons TNT. A 1-megaton nuclear weapon releases 4.184 PJ. Global annual steel production embeds ~38,000-47,000 PJ of energy. 1 PJ = 10¹⁵ J = 277.78 GWh = 238.85 ktoe = 23.88 ktoe.
Quick Reference Table
| Inch-Pound-Force (in·lbf) | Petajoules (PJ) |
|---|---|
| 1 in·lbf | 1.13 × 10-16 PJ |
| 2 in·lbf | 2.26 × 10-16 PJ |
| 5 in·lbf | 5.649 × 10-16 PJ |
| 10 in·lbf | 1.13 × 10-15 PJ |
| 25 in·lbf | 2.825 × 10-15 PJ |
| 50 in·lbf | 5.649 × 10-15 PJ |
| 100 in·lbf | 1.13 × 10-14 PJ |