Exajoule is 1000000000000000000 joule units.
Exajoules to Petajoules Converter — EJ to PJ
Convert Exajoule (EJ) to Petajoule (PJ) using the exact conversion factor (1 exajoule = 1,000 petajoule). See the formula, worked examples, and conversion table.
Exajoules to Petajoules 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.
Petajoule is 1000000000000000 joule units.
Result = input x 1e+18 / 1e+15.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Exajoules to Petajoules
Exajoule and Petajoule both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: Exajoule is 1000000000000000000 joule units, and petajoule is 1000000000000000 joule units.
Formula
petajoules = exajoules × 1000
This factor comes from each unit's defined relationship to the category's base unit: 1 exajoule equals 1e+18 base units, and 1 petajoule equals 1e+15 base units, so dividing one by the other gives the direct exajoule-to-petajoule factor of 1000.
Simple example
1 EJ × 1000 = 1,000 PJ
1 exajoule = 1,000 petajoules.
Real-world example
100 EJ × 1000 = 100,000 PJ
100 exajoules = 100,000 petajoules.
Conversion table
| Exajoule (EJ) | Petajoule (PJ) |
|---|---|
| 1 EJ | 1,000 PJ |
| 10 EJ | 10,000 PJ |
| 100 EJ | 100,000 PJ |
| 500 EJ | 500,000 PJ |
| 1,000 EJ | 1,000,000 PJ |
| 2,000 EJ | 2,000,000 PJ |
Reverse conversion: Petajoule to Exajoule
1 PJ × 0.001 = 0.001 EJ
1 petajoule = 0.001 exajoules.
exajoules = petajoules × 0.001
For a page dedicated to this direction, see Petajoule to Exajoule.
Understanding the Exajoule (EJ)
Exajoule is 1000000000000000000 joule units.
Understanding the Petajoule (PJ)
Petajoule is 1000000000000000 joule units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many petajoules are in 1 exajoule?
1 exajoule equals 1,000 petajoules, using the exact defined conversion factor rather than an estimate.
How do I convert exajoule to petajoule?
Multiply the exajoule value by 1000. The converter above does this instantly to whatever precision you set.
How do I convert petajoule back to exajoule?
Use the reverse factor: 1 petajoule equals 0.001 exajoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a exajoule?
Exajoule (EJ) is a unit of energy.
What is a petajoule?
Petajoule (PJ) is a unit of energy.
Is the exajoule to petajoule conversion exact?
Yes. Both exajoule and petajoule are defined by fixed standards rather than physical artifacts, so the factor of 1000 used above is exact to as many digits as you choose to display.