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 Joules
Convert Picojoule (pJ) to Joule (J) instantly with an exact formula, conversion table, and FAQ.
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Convert picojoules (pJ) to joules (J) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
The joule (J) is the SI derived unit of energy, equal to the work done when a force of one newton acts over one meter.
J = pJ × 1.000000000e-12
Results update instantly for Picojoules to Joules conversions.
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Formula
J = pJ × 1.000000000e-12
pJ = J × 1000000000000
Conversion table
| 1 pJ | 1.000000e-12 J |
| 5 pJ | 5.000000e-12 J |
| 10 pJ | 1.000000e-11 J |
| 20 pJ | 2.000000e-11 J |
| 50 pJ | 5.000000e-11 J |
| 100 pJ | 1.000000e-10 J |
| 500 pJ | 5.000000e-10 J |
| 1000 pJ | 1.000000e-09 J |
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How the formula works
Both picojoule and joule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in picojoules by 1.000000000e-12 to get joules. To reverse the conversion, multiply a joule value by 1000000000000 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 Joule (J)?
The joule (J) is the SI derived unit of energy, equal to the work done when a force of one newton acts over one meter.
How do I convert picojoules to joules?
Multiply the picojoule value by 1.000000000e-12 to get the equivalent in joules. For example, 5 pJ × 1.000000000e-12 = 5.000000e-12 J.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e-12 is an exact, non-rounded value.
Can I convert joules back to picojoules?
Yes. Divide the joule value by 1.000000000e-12, or multiply it by 1000000000000, to get picojoules.
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About converting picojoules to joules
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. The joule (J) is the SI derived unit of energy, equal to the work done when a force of one newton acts over one meter.
Use this calculator to move between picojoules and joules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.