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.
Attojoules to Picojoules
Convert Attojoule (aJ) to Picojoule (pJ) instantly with an exact formula, conversion table, and FAQ.
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Convert attojoules (aJ) to picojoules (pJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
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.
pJ = aJ × 0.000001
Results update instantly for Attojoules to Picojoules conversions.
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Formula
pJ = aJ × 0.000001
aJ = pJ × 1000000
Conversion table
| 1 aJ | 0.000001 pJ |
| 5 aJ | 0.000005 pJ |
| 10 aJ | 0.000010 pJ |
| 20 aJ | 0.000020 pJ |
| 50 aJ | 0.000050 pJ |
| 100 aJ | 0.000100 pJ |
| 500 aJ | 0.000500 pJ |
| 1000 aJ | 0.001000 pJ |
Related conversions
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How the formula works
Both attojoule and picojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in attojoules by 0.000001 to get picojoules. To reverse the conversion, multiply a picojoule value by 1000000 to get back to attojoules.
Frequently asked questions
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.
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.
How do I convert attojoules to picojoules?
Multiply the attojoule value by 0.000001 to get the equivalent in picojoules. For example, 5 aJ × 0.000001 = 0.000005 pJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 0.000001 is an exact, non-rounded value.
Can I convert picojoules back to attojoules?
Yes. Divide the picojoule value by 0.000001, or multiply it by 1000000, to get attojoules.
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About converting attojoules to picojoules
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. 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.
Use this calculator to move between attojoules and picojoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.