A picojoule (pJ) is a metric-prefixed unit of energy equal to 10-12 joules, a fraction of a single joule, using the SI pico prefix.
Picojoules to Attojoules
Convert Picojoule (pJ) to Attojoule (aJ) instantly with an exact formula, conversion table, and FAQ.
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Convert picojoules (pJ) to attojoules (aJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A attojoule (aJ) is a metric-prefixed unit of energy equal to 10-18 joules, a fraction of a single joule, using the SI atto prefix.
aJ = pJ × 1000000
Results update instantly for Picojoules to Attojoules conversions.
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Formula
aJ = pJ × 1000000
pJ = aJ × 0.000001
Conversion table
| 1 pJ | 1000000 aJ |
| 5 pJ | 5.000000e+06 aJ |
| 10 pJ | 1.000000e+07 aJ |
| 20 pJ | 2.000000e+07 aJ |
| 50 pJ | 5.000000e+07 aJ |
| 100 pJ | 1.000000e+08 aJ |
| 500 pJ | 5.000000e+08 aJ |
| 1000 pJ | 1.000000e+09 aJ |
Related conversions
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How the formula works
Both picojoule and attojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in picojoules by 1000000 to get attojoules. To reverse the conversion, multiply a attojoule value by 0.000001 to get back to picojoules.
Frequently asked questions
What is Picojoule (pJ)?
A picojoule (pJ) is a metric-prefixed unit of energy equal to 10-12 joules, a fraction of a single joule, using the SI pico prefix.
What is Attojoule (aJ)?
A attojoule (aJ) is a metric-prefixed unit of energy equal to 10-18 joules, a fraction of a single joule, using the SI atto prefix.
How do I convert picojoules to attojoules?
Multiply the picojoule value by 1000000 to get the equivalent in attojoules. For example, 5 pJ × 1000000 = 5.000000e+06 aJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1000000 is an exact, non-rounded value.
Can I convert attojoules back to picojoules?
Yes. Divide the attojoule value by 1000000, or multiply it by 0.000001, to get picojoules.
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About converting picojoules to attojoules
A picojoule (pJ) is a metric-prefixed unit of energy equal to 10-12 joules, a fraction of a single joule, using the SI pico prefix. A attojoule (aJ) is a metric-prefixed unit of energy equal to 10-18 joules, a fraction of a single joule, using the SI atto prefix.
Use this calculator to move between picojoules and attojoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.