Foot-pounds to Megajoules Converter
Enter the energy in foot-pounds below to convert it to megajoules.
Convert Foot-pounds to Megajoules
Enter a value in foot-pounds (ft·lbf) to convert to megajoules (MJ).
Foot-pound to Megajoule Conversion Table
Table showing various foot-pound measurements converted to megajoules. Click any preset value or arrow to load it into the converter.
| Foot-pounds (ft·lbf) | Megajoules (MJ) |
|---|---|
| 1 ft·lbf | 0.000001356 MJ |
| 10 ft·lbf | 0.000013558 MJ |
| 100 ft·lbf | 0.000135582 MJ |
| 1,000 ft·lbf | 0.0013558 MJ |
| 10,000 ft·lbf | 0.0135582 MJ |
| 100,000 ft·lbf | 0.1355818 MJ |
| 1,000,000 ft·lbf | 1.3558179 MJ |
| 5,000,000 ft·lbf | 6.7790897 MJ |
| 10,000,000 ft·lbf | 13.5581795 MJ |
| 25,400,000 ft·lbf | 34.4377759 MJ |
How to Convert Foot-pounds to Megajoules
To convert foot-pounds to megajoules, multiply the energy by the following conversion ratio: 0.000001356 megajoules/foot-pound.
Since one foot-pound is equal to 0.000001356 megajoules, you can use this simple formula to convert:
The energy in megajoules is equal to the energy in foot-pounds multiplied by 0.000001356.
For example, here's how to convert 5 foot-pounds to megajoules using the formula above.
How Many Megajoules Are in a Foot-pound?
There are 0.000001356 megajoules in a foot-pound, which is why we use this value in the formula above.
Our foot-pound to megajoule calculator automatically converts your energy measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Foot-pounds and megajoules are both units used to measure energy. Keep reading to learn more about each unit.
What Is a Foot-pound?
A foot-pound is a unit of energy equal to 1.3558179 joules (J), the base unit for energy. Mechanical work unit equal to 1.355818 Joules. [1]
The foot-pound is classified as a US customary and imperial unit of energy. Foot-pounds can be abbreviated as ft·lbf; for example, 1 foot-pound can be written as 1 ft·lbf.
When working with foot-pounds (ft·lbf) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, foot-pounds (ft·lbf) are widely used across standard energy applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
What Is a Megajoule?
A megajoule is a unit of energy equal to 1,000,000 joules (J), the base unit for energy. Equal to 1,000,000 Joules. [2]
The megajoule is classified as an International System of Units (SI) unit of energy. Megajoules can be abbreviated as MJ; for example, 1 megajoule can be written as 1 MJ.
In the metric system, "mega" is the standard SI prefix for millions, or 10⁶. This makes the megajoule (MJ) a convenient decimal multiple of the joule (J).
In practice, megajoules (MJ) are widely used across large-scale industrial, bulk, and macro-level energy specifications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting energy between foot-pounds (ft·lbf) and megajoules (MJ), keep full floating-point precision (1 ft·lbf = 0.000001356 MJ; 1 MJ = 737,562.1492773 ft·lbf) during intermediate calculations and round only the final megajoule figure to match your instrument tolerance.
More Foot-pound & Megajoule Conversions
Need to calculate in the opposite direction? Use our megajoules to foot-pounds calculator to switch your starting unit immediately. You can also explore related tools such as converting megajoules to foot-pounds, converting foot-pounds to joules, or converting joules to calories.
Convert from Foot-pounds
Frequently Asked Questions
References
- [1]NIST CODATA StandardNIST CODATA (CODATA Energy & Thermodynamic Constants)·Energy Metrology Standard — Foot-pounds (ft·lbf) to Megajoules (MJ)
- [2]NIST SP 811 SpecificationNIST SP 811 (NIST SP 811 App. B.9 (Energy, Work & Heat))·Unit Specifications: Foot-pound (ft·lbf) (ft·lbf) & Megajoule (MJ)
- [3]BIPM ReferenceBIPM (Derived SI Unit: Joule (J))·Conversion Factors & Mathematical Basis (ft·lbf to MJ)