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 Kilowatt hours
Convert Nanojoule (nJ) to Kilowatt-hour (kWh) instantly with an exact formula, conversion table, and FAQ.
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Convert nanojoules (nJ) to kilowatt hours (kWh) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A kilowatt-hour (kWh) is the standard billing unit for electricity, equal to 1,000 watts sustained for one hour.
kWh = nJ × 2.777777778e-16
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Formula
kWh = nJ × 2.777777778e-16
nJ = kWh × 3.600000000e+15
Conversion table
| 1 nJ | 2.777778e-16 kWh |
| 5 nJ | 1.388889e-15 kWh |
| 10 nJ | 2.777778e-15 kWh |
| 20 nJ | 5.555556e-15 kWh |
| 50 nJ | 1.388889e-14 kWh |
| 100 nJ | 2.777778e-14 kWh |
| 500 nJ | 1.388889e-13 kWh |
| 1000 nJ | 2.777778e-13 kWh |
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How the formula works
Both nanojoule and kilowatt-hour measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in nanojoules by 2.777777778e-16 to get kilowatt hours. To reverse the conversion, multiply a kilowatt-hour value by 3.600000000e+15 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 Kilowatt-hour (kWh)?
A kilowatt-hour (kWh) is the standard billing unit for electricity, equal to 1,000 watts sustained for one hour.
How do I convert nanojoules to kilowatt hours?
Multiply the nanojoule value by 2.777777778e-16 to get the equivalent in kilowatt hours. For example, 5 nJ × 2.777777778e-16 = 1.388889e-15 kWh.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 2.777777778e-16 is an exact, non-rounded value.
Can I convert kilowatt hours back to nanojoules?
Yes. Divide the kilowatt-hour value by 2.777777778e-16, or multiply it by 3.600000000e+15, to get nanojoules.
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About converting nanojoules to kilowatt hours
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 kilowatt-hour (kWh) is the standard billing unit for electricity, equal to 1,000 watts sustained for one hour.
Use this calculator to move between nanojoules and kilowatt hours accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.