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.
Nanojoules to Joules
Convert Nanojoule (nJ) to Joule (J) instantly with an exact formula, conversion table, and FAQ.
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Convert nanojoules (nJ) 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 = nJ × 1.000000000e-09
Results update instantly for Nanojoules to Joules conversions.
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Formula
J = nJ × 1.000000000e-09
nJ = J × 1000000000
Conversion table
| 1 nJ | 1.000000e-09 J |
| 5 nJ | 5.000000e-09 J |
| 10 nJ | 1.000000e-08 J |
| 20 nJ | 2.000000e-08 J |
| 50 nJ | 5.000000e-08 J |
| 100 nJ | 1.000000e-07 J |
| 500 nJ | 5.000000e-07 J |
| 1000 nJ | 0.000001 J |
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How the formula works
Both nanojoule and joule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in nanojoules by 1.000000000e-09 to get joules. To reverse the conversion, multiply a joule value by 1000000000 to get back to nanojoules.
Frequently asked questions
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.
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 nanojoules to joules?
Multiply the nanojoule value by 1.000000000e-09 to get the equivalent in joules. For example, 5 nJ × 1.000000000e-09 = 5.000000e-09 J.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e-09 is an exact, non-rounded value.
Can I convert joules back to nanojoules?
Yes. Divide the joule value by 1.000000000e-09, or multiply it by 1000000000, to get nanojoules.
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About converting nanojoules to joules
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. 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 nanojoules 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.