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Power and Energy

ft·lbftoMJ

Convert foot-pounds force (ft·lbf) to megajoules (MJ).

Factor1 ft·lbf = 1.355818e-6 MJ

Converter

ft·lbf

Accepts numbers or expressions, e.g. 150 + 14.7

Result
1.35582MJ

Rendered to 6 significant figures.

Formula

Formula
MJ = ft·lbf × 1.355818e-6

Multiply any value in foot-pounds force by 1.355818e-6 to obtain the value in megajoules.

Worked example

Convert 1.00000e+6 ft·lbf to MJ.

  1. 01Start with 1.00000e+6 ft·lbf.
  2. 02Multiply by the conversion factor: 1.00000e+6 × 1.355818e-6 = 1.35582 MJ.
Result1.00000e+6 ft·lbf = 1.35582 MJ

Conversion table

ft·lbfMJ
11.3558e-6
22.7116e-6
56.7791e-6
101.3558e-5
202.7116e-5
506.7791e-5
1000.00013558
2000.00027116
5000.00067791
10000.0013558

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from ft·lbf to MJ?
1 ft·lbf equals 1.355818e-6 MJ. To convert, multiply the value in foot-pounds force by 1.355818e-6.
How do I convert 1 ft·lbf to MJ?
1 ft·lbf = 1.35582e-6 MJ. For any value, multiply by 1.355818e-6.
How do I convert MJ back to ft·lbf?
Divide by the same factor — or equivalently, multiply by 737562.1. So 1 MJ = 737562 ft·lbf.
When would I need to convert foot-pound force to megajoule?
Energy conversions are needed when reconciling fuel/electrical billing, calculating thermal duties, and aligning calorimetry or HHV/LHV figures across data sources.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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