Gigajoules to Foot-pounds Converter
Enter the energy in gigajoules below to convert it to foot-pounds.
Convert Gigajoules to Foot-pounds
Enter a value in gigajoules (GJ) to convert to foot-pounds (ft·lbf).
Gigajoule to Foot-pound Conversion Table
Table showing various gigajoule measurements converted to foot-pounds. Click any preset value or arrow to load it into the converter.
| Gigajoules (GJ) | Foot-pounds (ft·lbf) |
|---|---|
| 0.0000001 GJ | 73.7562149 ft·lbf |
| 0.0000002 GJ | 147.5124299 ft·lbf |
| 0.0000003 GJ | 221.2686448 ft·lbf |
| 0.0000004 GJ | 295.0248597 ft·lbf |
| 0.0000005 GJ | 368.7810746 ft·lbf |
| 0.0000006 GJ | 442.5372896 ft·lbf |
| 0.0000007 GJ | 516.2935045 ft·lbf |
| 0.0000008 GJ | 590.0497194 ft·lbf |
| 0.0000009 GJ | 663.8059343 ft·lbf |
| 0.00000001 GJ | 7.3756215 ft·lbf |
How to Convert Gigajoules to Foot-pounds
To convert gigajoules to foot-pounds, multiply the energy by the following conversion ratio: 737,562,149.2772657 foot-pounds/gigajoule.
Since one gigajoule is equal to 737,562,149.2772657 foot-pounds, you can use this simple formula to convert:
The energy in foot-pounds is equal to the energy in gigajoules multiplied by 737,562,149.2772657.
For example, here's how to convert 5 gigajoules to foot-pounds using the formula above.
How Many Foot-pounds Are in a Gigajoule?
There are 737,562,149.2772657 foot-pounds in a gigajoule, which is why we use this value in the formula above.
Our gigajoule to foot-pound calculator automatically converts your energy measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Gigajoules and foot-pounds are both units used to measure energy. Keep reading to learn more about each unit.
What Is a Gigajoule?
A gigajoule is a unit of energy equal to 1,000,000,000 joules (J), the base unit for energy. Equal to 1,000,000,000 Joules, common in natural gas billing. [1]
The gigajoule is classified as an International System of Units (SI) unit of energy. Gigajoules can be abbreviated as GJ; for example, 1 gigajoule can be written as 1 GJ.
In the metric system, "giga" is the standard SI prefix for billions, or 10⁹. This makes the gigajoule (GJ) a convenient decimal multiple of the joule (J).
In practice, gigajoules (GJ) 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.
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. [2]
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.
When converting energy between gigajoules (GJ) and foot-pounds (ft·lbf), keep full floating-point precision (1 GJ = 737,562,149.2772657 ft·lbf; 1 ft·lbf = 1.355818e-9 GJ) during intermediate calculations and round only the final foot-pound figure to match your instrument tolerance.
More Gigajoule & Foot-pound Conversions
Need to calculate in the opposite direction? Use our foot-pounds to gigajoules calculator to switch your starting unit immediately. You can also explore related tools such as converting foot-pounds to gigajoules, converting joules to foot-pounds, or converting joules to calories.
Convert from Gigajoules
Frequently Asked Questions
References
- [1]NIST CODATA StandardNIST CODATA (CODATA Energy & Thermodynamic Constants)·Energy Metrology Standard — Gigajoules (GJ) to Foot-pounds (ft·lbf)
- [2]NIST SP 811 SpecificationNIST SP 811 (NIST SP 811 App. B.9 (Energy, Work & Heat))·Unit Specifications: Gigajoule (GJ) & Foot-pound (ft·lbf) (ft·lbf)
- [3]BIPM ReferenceBIPM (Derived SI Unit: Joule (J))·Conversion Factors & Mathematical Basis (GJ to ft·lbf)