Petajoule to Attojoule
Convert Petajoule to Attojoule instantly. Free online engineering unit converter with exact formula, conversion table and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Converter
Engineering Converter
Convert common stress, force, torque, power, and energy units used in engineering.
Context values
Some unit families need one extra value for a physically accurate result.
Use the converter to see the formula.
Results update instantly for Petajoule to Attojoule conversions.
Reserved above the conversion cards and below the converter.
Formula
aJ = PJ × 1e+33
PJ = aJ × 0
Conversion table
| 1 PJ | 1e+33 aJ |
| 5 PJ | 5e+33 aJ |
| 10 PJ | 1e+34 aJ |
| 20 PJ | 2e+34 aJ |
| 50 PJ | 5e+34 aJ |
| 100 PJ | 1e+35 aJ |
| 500 PJ | 5e+35 aJ |
| 1000 PJ | 1e+36 aJ |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
What is the source unit in this conversion?
The source unit is the Petajoule (PJ). Petajoule is 1000000000000000 joule units.
What is the destination unit in this conversion?
The destination unit is the Attojoule (aJ). Attojoule is 1e-18 joule units.
How do I convert Petajoule to Attojoule?
Multiply the Petajoule value by 1e+33. For example, 10 PJ × 1e+33 = 1e+34 aJ.
Is the Petajoule to Attojoule conversion exact?
Yes. Both units belong to the same engineering measurement family (energy), so the ratio between them is a fixed, defined value rather than a measured approximation.
Where is this conversion commonly used?
It's used whenever a value expressed in Petajoule needs to be compared with, or reported in, Attojoule, such as in engineering, scientific, or industrial calculations.
Can I convert Attojoule back to Petajoule?
Yes. Multiply the Attojoule value by 0 to get Petajoule.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
This page converts Petajoule (PJ) to Attojoule (aJ) within the engineering converter.
Petajoule is 1000000000000000 joule units. Attojoule is 1e-18 joule units.
The formula is aJ = PJ × 1e+33, based on each unit's fixed relationship to the energy base unit.
The conversion is exact, since it relies on a fixed numerical ratio between the two units rather than a measured or approximate value.
Use the calculator above for instant results, or the table below for common Petajoule values already converted to Attojoule.