Nanojoule is 1e-9 joule units.
Nanojoules to Femtojoules Converter — nJ to fJ
Convert Nanojoule (nJ) to Femtojoule (fJ) using the exact conversion factor (1 nanojoule = 1,000,000 femtojoule). See the formula, worked examples, and conversion table.
Nanojoules to Femtojoules 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.
Femtojoule is 1e-15 joule units.
Result = input x 1e-9 / 1e-15.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Nanojoules to Femtojoules
Nanojoule and Femtojoule both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: Nanojoule is 1e-9 joule units, and femtojoule is 1e-15 joule units.
Formula
femtojoules = nanojoules × 1000000
This factor comes from each unit's defined relationship to the category's base unit: 1 nanojoule equals 1e-9 base units, and 1 femtojoule equals 1e-15 base units, so dividing one by the other gives the direct nanojoule-to-femtojoule factor of 1000000.
Simple example
1 nJ × 1000000 = 1,000,000 fJ
1 nanojoule = 1,000,000 femtojoules.
Real-world example
100 nJ × 1000000 = 100,000,000 fJ
100 nanojoules = 100,000,000 femtojoules.
Conversion table
| Nanojoule (nJ) | Femtojoule (fJ) |
|---|---|
| 1 nJ | 1,000,000 fJ |
| 10 nJ | 10,000,000 fJ |
| 100 nJ | 100,000,000 fJ |
| 500 nJ | 500,000,000 fJ |
| 1,000 nJ | 1,000,000,000 fJ |
| 2,000 nJ | 2,000,000,000 fJ |
Reverse conversion: Femtojoule to Nanojoule
1 fJ × 0.000001 = 0.000001 nJ
1 femtojoule = 0.000001 nanojoules.
nanojoules = femtojoules × 0.000001
For a page dedicated to this direction, see Femtojoule to Nanojoule.
Understanding the Nanojoule (nJ)
Nanojoule is 1e-9 joule units.
Understanding the Femtojoule (fJ)
Femtojoule is 1e-15 joule units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many femtojoules are in 1 nanojoule?
1 nanojoule equals 1,000,000 femtojoules, using the exact defined conversion factor rather than an estimate.
How do I convert nanojoule to femtojoule?
Multiply the nanojoule value by 1000000. The converter above does this instantly to whatever precision you set.
How do I convert femtojoule back to nanojoule?
Use the reverse factor: 1 femtojoule equals 0.000001 nanojoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a nanojoule?
Nanojoule (nJ) is a unit of energy.
What is a femtojoule?
Femtojoule (fJ) is a unit of energy.
Is the nanojoule to femtojoule conversion exact?
Yes. Both nanojoule and femtojoule are defined by fixed standards rather than physical artifacts, so the factor of 1000000 used above is exact to as many digits as you choose to display.