Attojoule is 1e-18 joule units.
Attojoules to Foot-pounds Converter — aJ to ft-lb
Convert Attojoule (aJ) to Foot-pound (ft-lb) using the exact conversion factor (1 attojoule = 7.375621e-19 foot-pound). See the formula, worked examples, and conversion table.
Attojoules 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-18 / 1.355817948.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Attojoules to Foot-pounds
Attojoule and Foot-pound both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: Attojoule is 1e-18 joule units, and work from one pound-force over one foot.
Formula
foot-pounds = attojoules × 7.375621e-19
This factor comes from each unit's defined relationship to the category's base unit: 1 attojoule equals 1e-18 base units, and 1 foot-pound equals 1.35581794833 base units, so dividing one by the other gives the direct attojoule-to-foot-pound factor of 7.375621e-19.
Simple example
1 aJ × 7.375621e-19 = 7.375621e-19 ft-lb
1 attojoule = 7.375621e-19 foot-pounds.
Real-world example
100 aJ × 7.375621e-19 = 7.375621e-17 ft-lb
100 attojoules = 7.375621e-17 foot-pounds.
Conversion table
| Attojoule (aJ) | Foot-pound (ft-lb) |
|---|---|
| 1 aJ | 7.375621e-19 ft-lb |
| 10 aJ | 7.375621e-18 ft-lb |
| 100 aJ | 7.375621e-17 ft-lb |
| 500 aJ | 3.687811e-16 ft-lb |
| 1,000 aJ | 7.375621e-16 ft-lb |
| 2,000 aJ | 1.475124e-15 ft-lb |
Reverse conversion: Foot-pound to Attojoule
7.375621e-19 ft-lb × 1.355818e+18 = 0.9999999332 aJ
7.375621e-19 foot-pounds = 0.9999999332 attojoules.
attojoules = foot-pounds × 1.355818e+18
For a page dedicated to this direction, see Foot-pound to Attojoule.
Understanding the Attojoule (aJ)
Attojoule is 1e-18 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 attojoule?
1 attojoule equals 7.375621e-19 foot-pounds, using the exact defined conversion factor rather than an estimate.
How do I convert attojoule to foot-pound?
Multiply the attojoule value by 7.375621e-19. The converter above does this instantly to whatever precision you set.
How do I convert foot-pound back to attojoule?
Use the reverse factor: 1 foot-pound equals 1.355818e+18 attojoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a attojoule?
Attojoule (aJ) is a unit of energy.
What is a foot-pound?
Foot-pound (ft-lb) is a unit of energy.
Is the attojoule to foot-pound conversion exact?
Yes. Both attojoule and foot-pound are defined by fixed standards rather than physical artifacts, so the factor of 7.375621e-19 used above is exact to as many digits as you choose to display.