A terajoule (TJ) is a metric-prefixed unit of energy equal to 1012 joules, using the SI tera prefix.
Terajoules to Attojoules
Convert Terajoule (TJ) to Attojoule (aJ) instantly with an exact formula, conversion table, and FAQ.
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Convert terajoules (TJ) 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 = TJ × 1.000000000e+30
Results update instantly for Terajoules to Attojoules conversions.
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Formula
aJ = TJ × 1.000000000e+30
TJ = aJ × 1.000000000e-30
Conversion table
| 1 TJ | 1.000000e+30 aJ |
| 5 TJ | 5.000000e+30 aJ |
| 10 TJ | 1.000000e+31 aJ |
| 20 TJ | 2.000000e+31 aJ |
| 50 TJ | 5.000000e+31 aJ |
| 100 TJ | 1.000000e+32 aJ |
| 500 TJ | 5.000000e+32 aJ |
| 1000 TJ | 1.000000e+33 aJ |
Related conversions
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How the formula works
Both terajoule and attojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in terajoules by 1.000000000e+30 to get attojoules. To reverse the conversion, multiply a attojoule value by 1.000000000e-30 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 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 terajoules to attojoules?
Multiply the terajoule value by 1.000000000e+30 to get the equivalent in attojoules. For example, 5 TJ × 1.000000000e+30 = 5.000000e+30 aJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e+30 is an exact, non-rounded value.
Can I convert attojoules back to terajoules?
Yes. Divide the attojoule value by 1.000000000e+30, or multiply it by 1.000000000e-30, to get terajoules.
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About converting terajoules to attojoules
A terajoule (TJ) is a metric-prefixed unit of energy equal to 1012 joules, using the SI tera 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 terajoules 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.