Convert Megajoules to Foot-pounds
1 megajoule (MJ) equals 737562.1493 foot-pounds (ft·lbf).
1 MJ = 737562.1493 ft·lbf
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk megajoule to foot-pound converter to paste a column from Excel.
How to Convert Megajoule to Foot-pound
- 1 MJ = 737562.1493 ft·lbf
- 1 ft·lbf = 0.000001355817948 MJ
- Example: convert 15 MJ to ft·lbf: 15 MJ = 15 × 737562.1493 ft·lbf = 11063432.24 ft·lbf
Formula
ft·lbf = MJ × 737562.1492773
Derivation from SI units:
- 1 MJ = 10⁶ J
- 1 ft·lbf = 0.3048 m × 4.4482216152605 N = 1.3558179483314 J
- 1 MJ = 1000000 J ÷ 1.355817948331 J per ft·lbf = 737562.1492773 ft·lbf
Both units are defined exactly, so the factor is exact. Megajoule definition: megajoule; Foot-pound definition: foot-pound.
Worked examples
- A reading of 35 MJ converts to 25814675.22 ft·lbf.
35 MJ × 737562.1493 = 25814675.22 ft·lbf - A value of 50 MJ is 36878107.46 ft·lbf.
50 MJ × 737562.1493 = 36878107.46 ft·lbf
Megajoule to Foot-pound conversion table
| Megajoules (MJ) | Foot-pounds (ft·lbf) |
|---|---|
| 1 MJ | 737562.1493 ft·lbf |
| 3.6 MJ | 2655223.737 ft·lbf |
| 10 MJ | 7375621.493 ft·lbf |
| 35 MJ | 25814675.22 ft·lbf |
| 38 MJ | 28027361.67 ft·lbf |
| 45 MJ | 33190296.72 ft·lbf |
| 50 MJ | 36878107.46 ft·lbf |
| 100 MJ | 73756214.93 ft·lbf |
| 1000 MJ | 737562149.3 ft·lbf |
Where it's used
Megajoules are used for fuel heating values (natural gas ≈ 38 MJ/m³, diesel ≈ 45 MJ/kg), while foot-pounds appear in muzzle energy of firearms and air rifles. Both measure energy, work and heat, so the conversion is a fixed factor.
Megajoule to other energy units
| Conversion | 1 MJ equals |
|---|---|
| megajoule to joule | 1000000 J |
| megajoule to kilojoule | 1000 kJ |
| megajoule to calorie | 239005.7361 cal |
| megajoule to kilocalorie | 239.0057361 kcal |
| megajoule to watt-hour | 277.7777778 Wh |
| megajoule to kilowatt-hour | 0.2777777778 kWh |
| megajoule to BTU | 947.8171203 BTU |
| megajoule to therm | 0.00948043428 thm |
| megajoule to electronvolt | 6.241509074 × 10²⁴ eV |
| megajoule to foot-pound | 737562.1493 ft·lbf |
| megajoule to erg | 10000000000000 erg |
Frequently asked questions
How many foot-pounds are in 1 megajoule?
1 MJ = 737562.1493 ft·lbf.
How do I convert megajoules to foot-pounds?
Multiply the value in MJ by 737562.1493. For example, 15 MJ × 737562.1493 = 11063432.24 ft·lbf.
Is the MJ to ft·lbf conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "foot pound-force (ft·lbf)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Megajoules to Foot-pounds. Retrieved October 17, 2026, from https://scientificconverters.com/energy/megajoules-to-foot-pounds/
IEEE
Scientific Converters, "Convert Megajoules to Foot-pounds," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/energy/megajoules-to-foot-pounds/