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 Attojoules
Convert Nanojoule (nJ) to Attojoule (aJ) instantly with an exact formula, conversion table, and FAQ.
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Convert nanojoules (nJ) 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 = nJ × 1000000000
Results update instantly for Nanojoules to Attojoules conversions.
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Formula
aJ = nJ × 1000000000
nJ = aJ × 1.000000000e-09
Conversion table
| 1 nJ | 1.000000e+09 aJ |
| 5 nJ | 5.000000e+09 aJ |
| 10 nJ | 1.000000e+10 aJ |
| 20 nJ | 2.000000e+10 aJ |
| 50 nJ | 5.000000e+10 aJ |
| 100 nJ | 1.000000e+11 aJ |
| 500 nJ | 5.000000e+11 aJ |
| 1000 nJ | 1.000000e+12 aJ |
Related conversions
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How the formula works
Both nanojoule and attojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in nanojoules by 1000000000 to get attojoules. To reverse the conversion, multiply a attojoule value by 1.000000000e-09 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 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 nanojoules to attojoules?
Multiply the nanojoule value by 1000000000 to get the equivalent in attojoules. For example, 5 nJ × 1000000000 = 5.000000e+09 aJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1000000000 is an exact, non-rounded value.
Can I convert attojoules back to nanojoules?
Yes. Divide the attojoule value by 1000000000, or multiply it by 1.000000000e-09, to get nanojoules.
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About converting nanojoules to attojoules
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. 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 nanojoules 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.