Yoctojoule is 1e-24 joule units.
Yoctojoules to Foot-pounds Converter — yJ to ft-lb
Convert Yoctojoule (yJ) to Foot-pound (ft-lb) using the exact conversion factor (1 yoctojoule = 7.375621e-25 foot-pound). See the formula, worked examples, and conversion table.
Yoctojoules 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-24 / 1.355817948.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Yoctojoules to Foot-pounds
Yoctojoule and Foot-pound both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: Yoctojoule is 1e-24 joule units, and work from one pound-force over one foot.
Formula
foot-pounds = yoctojoules × 7.375621e-25
This factor comes from each unit's defined relationship to the category's base unit: 1 yoctojoule equals 1e-24 base units, and 1 foot-pound equals 1.35581794833 base units, so dividing one by the other gives the direct yoctojoule-to-foot-pound factor of 7.375621e-25.
Simple example
1 yJ × 7.375621e-25 = 7.375621e-25 ft-lb
1 yoctojoule = 7.375621e-25 foot-pounds.
Real-world example
100 yJ × 7.375621e-25 = 7.375621e-23 ft-lb
100 yoctojoules = 7.375621e-23 foot-pounds.
Conversion table
| Yoctojoule (yJ) | Foot-pound (ft-lb) |
|---|---|
| 1 yJ | 7.375621e-25 ft-lb |
| 10 yJ | 7.375621e-24 ft-lb |
| 100 yJ | 7.375621e-23 ft-lb |
| 500 yJ | 3.687811e-22 ft-lb |
| 1,000 yJ | 7.375621e-22 ft-lb |
| 2,000 yJ | 1.475124e-21 ft-lb |
Reverse conversion: Foot-pound to Yoctojoule
7.375621e-25 ft-lb × 1.355818e+24 = 0.9999999332 yJ
7.375621e-25 foot-pounds = 0.9999999332 yoctojoules.
yoctojoules = foot-pounds × 1.355818e+24
For a page dedicated to this direction, see Foot-pound to Yoctojoule.
Understanding the Yoctojoule (yJ)
Yoctojoule is 1e-24 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 yoctojoule?
1 yoctojoule equals 7.375621e-25 foot-pounds, using the exact defined conversion factor rather than an estimate.
How do I convert yoctojoule to foot-pound?
Multiply the yoctojoule value by 7.375621e-25. The converter above does this instantly to whatever precision you set.
How do I convert foot-pound back to yoctojoule?
Use the reverse factor: 1 foot-pound equals 1.355818e+24 yoctojoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a yoctojoule?
Yoctojoule (yJ) is a unit of energy.
What is a foot-pound?
Foot-pound (ft-lb) is a unit of energy.
Is the yoctojoule to foot-pound conversion exact?
Yes. Both yoctojoule and foot-pound are defined by fixed standards rather than physical artifacts, so the factor of 7.375621e-25 used above is exact to as many digits as you choose to display.