A terajoule (TJ) is a metric-prefixed unit of energy equal to 1012 joules, using the SI tera prefix.
Terajoules to Joules
Convert Terajoule (TJ) to Joule (J) instantly with an exact formula, conversion table, and FAQ.
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Convert terajoules (TJ) 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 = TJ × 1000000000000
Results update instantly for Terajoules to Joules conversions.
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Formula
J = TJ × 1000000000000
TJ = J × 1.000000000e-12
Conversion table
| 1 TJ | 1.000000e+12 J |
| 5 TJ | 5.000000e+12 J |
| 10 TJ | 1.000000e+13 J |
| 20 TJ | 2.000000e+13 J |
| 50 TJ | 5.000000e+13 J |
| 100 TJ | 1.000000e+14 J |
| 500 TJ | 5.000000e+14 J |
| 1000 TJ | 1.000000e+15 J |
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How the formula works
Both terajoule and joule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in terajoules by 1000000000000 to get joules. To reverse the conversion, multiply a joule value by 1.000000000e-12 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 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 terajoules to joules?
Multiply the terajoule value by 1000000000000 to get the equivalent in joules. For example, 5 TJ × 1000000000000 = 5.000000e+12 J.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1000000000000 is an exact, non-rounded value.
Can I convert joules back to terajoules?
Yes. Divide the joule value by 1000000000000, or multiply it by 1.000000000e-12, to get terajoules.
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About converting terajoules to joules
A terajoule (TJ) is a metric-prefixed unit of energy equal to 1012 joules, using the SI tera 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 terajoules 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.