A terajoule (TJ) is a metric-prefixed unit of energy equal to 1012 joules, using the SI tera prefix.
Terajoules to Zeptojoules
Convert Terajoule (TJ) to Zeptojoule (zJ) instantly with an exact formula, conversion table, and FAQ.
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Convert terajoules (TJ) to zeptojoules (zJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A zeptojoule (zJ) is a metric-prefixed unit of energy equal to 10-21 joules, a fraction of a single joule, using the SI zepto prefix.
zJ = TJ × 1.000000000e+33
Results update instantly for Terajoules to Zeptojoules conversions.
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Formula
zJ = TJ × 1.000000000e+33
TJ = zJ × 1.000000000e-33
Conversion table
| 1 TJ | 1.000000e+33 zJ |
| 5 TJ | 5.000000e+33 zJ |
| 10 TJ | 1.000000e+34 zJ |
| 20 TJ | 2.000000e+34 zJ |
| 50 TJ | 5.000000e+34 zJ |
| 100 TJ | 1.000000e+35 zJ |
| 500 TJ | 5.000000e+35 zJ |
| 1000 TJ | 1.000000e+36 zJ |
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How the formula works
Both terajoule and zeptojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in terajoules by 1.000000000e+33 to get zeptojoules. To reverse the conversion, multiply a zeptojoule value by 1.000000000e-33 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 Zeptojoule (zJ)?
A zeptojoule (zJ) is a metric-prefixed unit of energy equal to 10-21 joules, a fraction of a single joule, using the SI zepto prefix.
How do I convert terajoules to zeptojoules?
Multiply the terajoule value by 1.000000000e+33 to get the equivalent in zeptojoules. For example, 5 TJ × 1.000000000e+33 = 5.000000e+33 zJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e+33 is an exact, non-rounded value.
Can I convert zeptojoules back to terajoules?
Yes. Divide the zeptojoule value by 1.000000000e+33, or multiply it by 1.000000000e-33, to get terajoules.
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About converting terajoules to zeptojoules
A terajoule (TJ) is a metric-prefixed unit of energy equal to 1012 joules, using the SI tera prefix. A zeptojoule (zJ) is a metric-prefixed unit of energy equal to 10-21 joules, a fraction of a single joule, using the SI zepto prefix.
Use this calculator to move between terajoules and zeptojoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.