A gigajoule (GJ) is a metric-prefixed unit of energy equal to 109 joules, using the SI giga prefix.
Gigajoules to Yottajoules
Convert Gigajoule (GJ) to Yottajoule (YJ) instantly with an exact formula, conversion table, and FAQ.
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Convert gigajoules (GJ) to yottajoules (YJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A yottajoule (YJ) is a metric-prefixed unit of energy equal to 1024 joules, using the SI yotta prefix.
YJ = GJ × 1.000000000e-15
Results update instantly for Gigajoules to Yottajoules conversions.
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Formula
YJ = GJ × 1.000000000e-15
GJ = YJ × 1.000000000e+15
Conversion table
| 1 GJ | 1.000000e-15 YJ |
| 5 GJ | 5.000000e-15 YJ |
| 10 GJ | 1.000000e-14 YJ |
| 20 GJ | 2.000000e-14 YJ |
| 50 GJ | 5.000000e-14 YJ |
| 100 GJ | 1.000000e-13 YJ |
| 500 GJ | 5.000000e-13 YJ |
| 1000 GJ | 1.000000e-12 YJ |
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How the formula works
Both gigajoule and yottajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in gigajoules by 1.000000000e-15 to get yottajoules. To reverse the conversion, multiply a yottajoule value by 1.000000000e+15 to get back to gigajoules.
Frequently asked questions
What is Gigajoule (GJ)?
A gigajoule (GJ) is a metric-prefixed unit of energy equal to 109 joules, using the SI giga prefix.
What is Yottajoule (YJ)?
A yottajoule (YJ) is a metric-prefixed unit of energy equal to 1024 joules, using the SI yotta prefix.
How do I convert gigajoules to yottajoules?
Multiply the gigajoule value by 1.000000000e-15 to get the equivalent in yottajoules. For example, 5 GJ × 1.000000000e-15 = 5.000000e-15 YJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e-15 is an exact, non-rounded value.
Can I convert yottajoules back to gigajoules?
Yes. Divide the yottajoule value by 1.000000000e-15, or multiply it by 1.000000000e+15, to get gigajoules.
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About converting gigajoules to yottajoules
A gigajoule (GJ) is a metric-prefixed unit of energy equal to 109 joules, using the SI giga prefix. A yottajoule (YJ) is a metric-prefixed unit of energy equal to 1024 joules, using the SI yotta prefix.
Use this calculator to move between gigajoules and yottajoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.