Petajoule is 1000000000000000 joule units.
Petajoules to Foot-pounds Converter — PJ to ft-lb
Convert Petajoule (PJ) to Foot-pound (ft-lb) using the exact conversion factor (1 petajoule = 7.375621e+14 foot-pound). See the formula, worked examples, and conversion table.
Petajoules 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+15 / 1.355817948.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Petajoules to Foot-pounds
Petajoule and Foot-pound both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: Petajoule is 1000000000000000 joule units, and work from one pound-force over one foot.
Formula
foot-pounds = petajoules × 7.375621e+14
This factor comes from each unit's defined relationship to the category's base unit: 1 petajoule equals 1e+15 base units, and 1 foot-pound equals 1.35581794833 base units, so dividing one by the other gives the direct petajoule-to-foot-pound factor of 7.375621e+14.
Simple example
1 PJ × 7.375621e+14 = 7.375621e+14 ft-lb
1 petajoule = 7.375621e+14 foot-pounds.
Real-world example
100 PJ × 7.375621e+14 = 7.375621e+16 ft-lb
100 petajoules = 7.375621e+16 foot-pounds.
Conversion table
| Petajoule (PJ) | Foot-pound (ft-lb) |
|---|---|
| 1 PJ | 7.375621e+14 ft-lb |
| 10 PJ | 7.375621e+15 ft-lb |
| 100 PJ | 7.375621e+16 ft-lb |
| 500 PJ | 3.687811e+17 ft-lb |
| 1,000 PJ | 7.375621e+17 ft-lb |
| 2,000 PJ | 1.475124e+18 ft-lb |
Reverse conversion: Foot-pound to Petajoule
7.375621e+14 ft-lb × 1.355818e-15 = 0.9999999332 PJ
7.375621e+14 foot-pounds = 0.9999999332 petajoules.
petajoules = foot-pounds × 1.355818e-15
For a page dedicated to this direction, see Foot-pound to Petajoule.
Understanding the Petajoule (PJ)
Petajoule is 1000000000000000 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 petajoule?
1 petajoule equals 7.375621e+14 foot-pounds, using the exact defined conversion factor rather than an estimate.
How do I convert petajoule to foot-pound?
Multiply the petajoule value by 7.375621e+14. The converter above does this instantly to whatever precision you set.
How do I convert foot-pound back to petajoule?
Use the reverse factor: 1 foot-pound equals 1.355818e-15 petajoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a petajoule?
Petajoule (PJ) is a unit of energy.
What is a foot-pound?
Foot-pound (ft-lb) is a unit of energy.
Is the petajoule to foot-pound conversion exact?
Yes. Both petajoule and foot-pound are defined by fixed standards rather than physical artifacts, so the factor of 7.375621e+14 used above is exact to as many digits as you choose to display.