Convert Megatons of TNT to Foot-Pound-Force
Convert Megatons of TNT (Mt(TNT)) to Foot-Pound-Force (ft·lbf) instantly and accurately.
Conversion Formula
ft·lbf = Mt(TNT) × 3.085960033e+15
About Megatons of TNT
A megaton of TNT (Mt(TNT)) = 10⁶ tons of TNT = exactly 4.184 PJ. The Soviet Tsar Bomba (1961) yielded ~50 Mt - the largest human-made explosion ever, with a fireball 8 km in diameter. Castle Bravo (1954) yielded ~15 Mt, 2.5× its 6 Mt design yield. Modern thermonuclear warheads typically range from 0.1-1.2 Mt. The 2011 Tōhoku earthquake released ~500 Mt in seismic energy. The Krakatoa 1883 eruption released ~200 Mt; Tambora 1815 ~33,000 Mt. 1 Mt(TNT) = 4.184 PJ = 1,162,800 MWh.
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
| Megatons of TNT (Mt(TNT)) | Foot-Pound-Force (ft·lbf) |
|---|---|
| 1 Mt(TNT) | 3.086 × 1015 ft·lbf |
| 2 Mt(TNT) | 6.172 × 1015 ft·lbf |
| 5 Mt(TNT) | 1.543 × 1016 ft·lbf |
| 10 Mt(TNT) | 3.086 × 1016 ft·lbf |
| 25 Mt(TNT) | 7.715 × 1016 ft·lbf |
| 50 Mt(TNT) | 1.543 × 1017 ft·lbf |
| 100 Mt(TNT) | 3.086 × 1017 ft·lbf |