Petajoule is 1000000000000000 joule units.
Petajoules to Terajoules Converter — PJ to TJ
Convert Petajoule (PJ) to Terajoule (TJ) using the exact conversion factor (1 petajoule = 1,000 terajoule). See the formula, worked examples, and conversion table.
Petajoules to Terajoules 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.
Terajoule is 1000000000000 joule units.
Result = input x 1e+15 / 1e+12.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Petajoules to Terajoules
Petajoule and Terajoule both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: Petajoule is 1000000000000000 joule units, and terajoule is 1000000000000 joule units.
Formula
terajoules = petajoules × 1000
This factor comes from each unit's defined relationship to the category's base unit: 1 petajoule equals 1e+15 base units, and 1 terajoule equals 1e+12 base units, so dividing one by the other gives the direct petajoule-to-terajoule factor of 1000.
Simple example
1 PJ × 1000 = 1,000 TJ
1 petajoule = 1,000 terajoules.
Real-world example
100 PJ × 1000 = 100,000 TJ
100 petajoules = 100,000 terajoules.
Conversion table
| Petajoule (PJ) | Terajoule (TJ) |
|---|---|
| 1 PJ | 1,000 TJ |
| 10 PJ | 10,000 TJ |
| 100 PJ | 100,000 TJ |
| 500 PJ | 500,000 TJ |
| 1,000 PJ | 1,000,000 TJ |
| 2,000 PJ | 2,000,000 TJ |
Reverse conversion: Terajoule to Petajoule
1 TJ × 0.001 = 0.001 PJ
1 terajoule = 0.001 petajoules.
petajoules = terajoules × 0.001
For a page dedicated to this direction, see Terajoule to Petajoule.
Understanding the Petajoule (PJ)
Petajoule is 1000000000000000 joule units.
Understanding the Terajoule (TJ)
Terajoule is 1000000000000 joule units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many terajoules are in 1 petajoule?
1 petajoule equals 1,000 terajoules, using the exact defined conversion factor rather than an estimate.
How do I convert petajoule to terajoule?
Multiply the petajoule value by 1000. The converter above does this instantly to whatever precision you set.
How do I convert terajoule back to petajoule?
Use the reverse factor: 1 terajoule equals 0.001 petajoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a petajoule?
Petajoule (PJ) is a unit of energy.
What is a terajoule?
Terajoule (TJ) is a unit of energy.
Is the petajoule to terajoule conversion exact?
Yes. Both petajoule and terajoule 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.