Work from one pound-force over one foot.
Foot-pounds to Yottajoules Converter — ft-lb to YJ
Convert Foot-pound (ft-lb) to Yottajoule (YJ) using the exact conversion factor (1 foot-pound = 1.355818e-24 yottajoule). See the formula, worked examples, and conversion table.
Foot-pounds to Yottajoules 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.
Yottajoule is 1e+24 joule units.
Result = input x 1.355817948 / 1e+24.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Foot-pounds to Yottajoules
Foot-pound and Yottajoule both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: Work from one pound-force over one foot, and yottajoule is 1e+24 joule units.
Formula
yottajoules = foot-pounds × 1.355818e-24
This factor comes from each unit's defined relationship to the category's base unit: 1 foot-pound equals 1.35581794833 base units, and 1 yottajoule equals 1e+24 base units, so dividing one by the other gives the direct foot-pound-to-yottajoule factor of 1.355818e-24.
Simple example
1 ft-lb × 1.355818e-24 = 1.355818e-24 YJ
1 foot-pound = 1.355818e-24 yottajoules.
Real-world example
100 ft-lb × 1.355818e-24 = 1.355818e-22 YJ
100 foot-pounds = 1.355818e-22 yottajoules.
Conversion table
| Foot-pound (ft-lb) | Yottajoule (YJ) |
|---|---|
| 1 ft-lb | 1.355818e-24 YJ |
| 10 ft-lb | 1.355818e-23 YJ |
| 100 ft-lb | 1.355818e-22 YJ |
| 500 ft-lb | 6.77909e-22 YJ |
| 1,000 ft-lb | 1.355818e-21 YJ |
| 2,000 ft-lb | 2.711636e-21 YJ |
Reverse conversion: Yottajoule to Foot-pound
1.355818e-24 YJ × 7.375621e+23 = 1.000000038 ft-lb
1.355818e-24 yottajoules = 1.000000038 foot-pounds.
foot-pounds = yottajoules × 7.375621e+23
For a page dedicated to this direction, see Yottajoule to Foot-pound.
Understanding the Foot-pound (ft-lb)
Work from one pound-force over one foot.
Understanding the Yottajoule (YJ)
Yottajoule is 1e+24 joule units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many yottajoules are in 1 foot-pound?
1 foot-pound equals 1.355818e-24 yottajoules, using the exact defined conversion factor rather than an estimate.
How do I convert foot-pound to yottajoule?
Multiply the foot-pound value by 1.355818e-24. The converter above does this instantly to whatever precision you set.
How do I convert yottajoule back to foot-pound?
Use the reverse factor: 1 yottajoule equals 7.375621e+23 foot-pounds. You can also use the swap control in the converter above to flip the direction instantly.
What is a foot-pound?
Foot-pound (ft-lb) is a unit of energy.
What is a yottajoule?
Yottajoule (YJ) is a unit of energy.
Is the foot-pound to yottajoule conversion exact?
Yes. Both foot-pound and yottajoule are defined by fixed standards rather than physical artifacts, so the factor of 1.355818e-24 used above is exact to as many digits as you choose to display.