A terajoule (TJ) is a metric-prefixed unit of energy equal to 1012 joules, using the SI tera prefix.
Terajoules to Kilowatt hours
Convert Terajoule (TJ) to Kilowatt-hour (kWh) instantly with an exact formula, conversion table, and FAQ.
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Convert terajoules (TJ) 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 = TJ × 277777.7778
Results update instantly for Terajoules to Kilowatt hours conversions.
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Formula
kWh = TJ × 277777.7778
TJ = kWh × 0.0000036
Conversion table
| 1 TJ | 277777.777778 kWh |
| 5 TJ | 1.388889e+06 kWh |
| 10 TJ | 2.777778e+06 kWh |
| 20 TJ | 5.555556e+06 kWh |
| 50 TJ | 1.388889e+07 kWh |
| 100 TJ | 2.777778e+07 kWh |
| 500 TJ | 1.388889e+08 kWh |
| 1000 TJ | 2.777778e+08 kWh |
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How the formula works
Both terajoule and kilowatt-hour measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in terajoules by 277777.7778 to get kilowatt hours. To reverse the conversion, multiply a kilowatt-hour value by 0.0000036 to get back to terajoules.
Frequently asked questions
What is Terajoule (TJ)?
A terajoule (TJ) is a metric-prefixed unit of energy equal to 1012 joules, using the SI tera 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 terajoules to kilowatt hours?
Multiply the terajoule value by 277777.7778 to get the equivalent in kilowatt hours. For example, 5 TJ × 277777.7778 = 1.388889e+06 kWh.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 277777.7778 is an exact, non-rounded value.
Can I convert kilowatt hours back to terajoules?
Yes. Divide the kilowatt-hour value by 277777.7778, or multiply it by 0.0000036, to get terajoules.
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About converting terajoules to kilowatt hours
A terajoule (TJ) is a metric-prefixed unit of energy equal to 1012 joules, using the SI tera 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 terajoules 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.