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 Nanojoules
Convert Picojoule (pJ) to Nanojoule (nJ) instantly with an exact formula, conversion table, and FAQ.
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Convert picojoules (pJ) to nanojoules (nJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A nanojoule (nJ) is a metric-prefixed unit of energy equal to 10-9 joules, a fraction of a single joule, using the SI nano prefix.
nJ = pJ × 0.001
Results update instantly for Picojoules to Nanojoules conversions.
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Formula
nJ = pJ × 0.001
pJ = nJ × 1000
Conversion table
| 1 pJ | 0.001000 nJ |
| 5 pJ | 0.005000 nJ |
| 10 pJ | 0.010000 nJ |
| 20 pJ | 0.020000 nJ |
| 50 pJ | 0.050000 nJ |
| 100 pJ | 0.100000 nJ |
| 500 pJ | 0.500000 nJ |
| 1000 pJ | 1 nJ |
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How the formula works
Both picojoule and nanojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in picojoules by 0.001 to get nanojoules. To reverse the conversion, multiply a nanojoule value by 1000 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 Nanojoule (nJ)?
A nanojoule (nJ) is a metric-prefixed unit of energy equal to 10-9 joules, a fraction of a single joule, using the SI nano prefix.
How do I convert picojoules to nanojoules?
Multiply the picojoule value by 0.001 to get the equivalent in nanojoules. For example, 5 pJ × 0.001 = 0.005000 nJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 0.001 is an exact, non-rounded value.
Can I convert nanojoules back to picojoules?
Yes. Divide the nanojoule value by 0.001, or multiply it by 1000, to get picojoules.
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About converting picojoules to nanojoules
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 nanojoule (nJ) is a metric-prefixed unit of energy equal to 10-9 joules, a fraction of a single joule, using the SI nano prefix.
Use this calculator to move between picojoules and nanojoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.