Convert Ergs to Inch-Pound-Force
Convert Ergs (erg) to Inch-Pound-Force (in·lbf) instantly and accurately.
Conversion Formula
in·lbf = erg × 8.850745791e-7
About Ergs
An erg is the CGS unit of energy - the work done by one dyne through one centimetre - exactly 10⁻⁷ J. Despite SI adoption, the erg persists in astrophysics: the Sun's luminosity is 3.828 × 10³³ erg/s; gamma-ray burst isotropic energies are quoted in units of 10⁵¹ erg ('one foe'). Surface tension of water is 72.8 dyn/cm; the work to create 1 cm² of new water-air interface is 72.8 erg. Earthquake seismic moment M₀ is in dyn·cm = erg; the 2004 Boxing Day earthquake had M₀ ≈ 10²³ J = 10³⁰ erg. 1 erg = 10⁻⁷ J = 624.15 eV.
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.
Quick Reference Table
| Ergs (erg) | Inch-Pound-Force (in·lbf) |
|---|---|
| 1 erg | 8.851 × 10-7 in·lbf |
| 2 erg | 1.77 × 10-6 in·lbf |
| 5 erg | 4.425 × 10-6 in·lbf |
| 10 erg | 8.851 × 10-6 in·lbf |
| 25 erg | 2.213 × 10-5 in·lbf |
| 50 erg | 4.425 × 10-5 in·lbf |
| 100 erg | 8.851 × 10-5 in·lbf |