Gigajoule is 1000000000 joule units.
Gigajoules to Foot-pounds Converter — GJ to ft-lb
Convert Gigajoule (GJ) to Foot-pound (ft-lb) using the exact conversion factor (1 gigajoule = 737,562,149.3 foot-pound). See the formula, worked examples, and conversion table.
Gigajoules to Foot-pounds converter
Converter
Energy Converter
Convert joules, calories, kilowatt-hours, BTU, electronvolts, therms, and mechanical work units.
Context values
Some unit families need one extra value for a physically accurate result.
Work from one pound-force over one foot.
Result = input x 1e+9 / 1.355817948.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gigajoules to Foot-pounds
Gigajoule and Foot-pound both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: Gigajoule is 1000000000 joule units, and work from one pound-force over one foot.
Formula
foot-pounds = gigajoules × 737562149.277
This factor comes from each unit's defined relationship to the category's base unit: 1 gigajoule equals 1000000000 base units, and 1 foot-pound equals 1.35581794833 base units, so dividing one by the other gives the direct gigajoule-to-foot-pound factor of 737562149.277.
Simple example
1 GJ × 737562149.3 = 737,562,149.3 ft-lb
1 gigajoule = 737,562,149.3 foot-pounds.
Real-world example
100 GJ × 737562149.3 = 73,756,214,930 ft-lb
100 gigajoules = 73,756,214,930 foot-pounds.
Conversion table
| Gigajoule (GJ) | Foot-pound (ft-lb) |
|---|---|
| 1 GJ | 737,562,149.3 ft-lb |
| 10 GJ | 7,375,621,493 ft-lb |
| 100 GJ | 73,756,214,930 ft-lb |
| 500 GJ | 368,781,074,600 ft-lb |
| 1,000 GJ | 737,562,149,300 ft-lb |
| 2,000 GJ | 1.475124e+12 ft-lb |
Reverse conversion: Foot-pound to Gigajoule
1 ft-lb × 1.355818e-9 = 1.355818e-9 GJ
1 foot-pound = 1.355818e-9 gigajoules.
gigajoules = foot-pounds × 1.355818e-9
For a page dedicated to this direction, see Foot-pound to Gigajoule.
Understanding the Gigajoule (GJ)
Gigajoule is 1000000000 joule units.
Understanding the Foot-pound (ft-lb)
Work from one pound-force over one foot.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many foot-pounds are in 1 gigajoule?
1 gigajoule equals 737,562,149.3 foot-pounds, using the exact defined conversion factor rather than an estimate.
How do I convert gigajoule to foot-pound?
Multiply the gigajoule value by 737562149.3. The converter above does this instantly to whatever precision you set.
How do I convert foot-pound back to gigajoule?
Use the reverse factor: 1 foot-pound equals 1.355818e-9 gigajoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a gigajoule?
Gigajoule (GJ) is a unit of energy.
What is a foot-pound?
Foot-pound (ft-lb) is a unit of energy.
Is the gigajoule to foot-pound conversion exact?
Yes. Both gigajoule and foot-pound are defined by fixed standards rather than physical artifacts, so the factor of 737562149.3 used above is exact to as many digits as you choose to display.