Convert Ergs to Foot-Pound-Force
Convert Ergs (erg) to Foot-Pound-Force (ft·lbf) instantly and accurately.
Conversion Formula
ft·lbf = erg × 7.375621493e-8
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 Foot-Pound-Force
A foot-pound-force (ft·lbf) is the work done by one pound-force through one foot - exactly 1.3558179483314004 J. It is the standard torque and energy unit in US engineering. Automotive engine torque: Honda Civic ~125 lb-ft; Ford F-150 EcoBoost ~500 lb-ft. Muzzle energies: .22 LR ~140 ft·lbf; .308 Winchester ~2,600 ft·lbf; .50 BMG ~14,000 ft·lbf. Diesel pile hammers deliver 15,000-600,000 ft·lbf/blow. SAE Grade 8 bolts are specified at 7-950 ft·lbf. 1 ft·lbf = 12 in·lbf = 1.35582 J = 0.32405 cal.
Quick Reference Table
| Ergs (erg) | Foot-Pound-Force (ft·lbf) |
|---|---|
| 1 erg | 7.376 × 10-8 ft·lbf |
| 2 erg | 1.475 × 10-7 ft·lbf |
| 5 erg | 3.688 × 10-7 ft·lbf |
| 10 erg | 7.376 × 10-7 ft·lbf |
| 25 erg | 1.844 × 10-6 ft·lbf |
| 50 erg | 3.688 × 10-6 ft·lbf |
| 100 erg | 7.376 × 10-6 ft·lbf |