A (small) calorie is a thermochemical unit of heat energy equal to 4.184 joules, historically the energy needed to raise 1 gram of water by 1°C.
Calories to Yottajoules
Convert Calorie (cal) to Yottajoule (YJ) instantly with an exact formula, conversion table, and FAQ.
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Convert calories (cal) 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 = cal × 4.184000000e-24
Results update instantly for Calories to Yottajoules conversions.
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Formula
YJ = cal × 4.184000000e-24
cal = YJ × 2.390057361e+23
Conversion table
| 1 cal | 4.184000e-24 YJ |
| 5 cal | 2.092000e-23 YJ |
| 10 cal | 4.184000e-23 YJ |
| 20 cal | 8.368000e-23 YJ |
| 50 cal | 2.092000e-22 YJ |
| 100 cal | 4.184000e-22 YJ |
| 500 cal | 2.092000e-21 YJ |
| 1000 cal | 4.184000e-21 YJ |
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How the formula works
Both calorie and yottajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in calories by 4.184000000e-24 to get yottajoules. To reverse the conversion, multiply a yottajoule value by 2.390057361e+23 to get back to calories.
Frequently asked questions
What is Calorie (cal)?
A (small) calorie is a thermochemical unit of heat energy equal to 4.184 joules, historically the energy needed to raise 1 gram of water by 1°C.
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 calories to yottajoules?
Multiply the calorie value by 4.184000000e-24 to get the equivalent in yottajoules. For example, 5 cal × 4.184000000e-24 = 2.092000e-23 YJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 4.184000000e-24 is an exact, non-rounded value.
Can I convert yottajoules back to calories?
Yes. Divide the yottajoule value by 4.184000000e-24, or multiply it by 2.390057361e+23, to get calories.
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About converting calories to yottajoules
A (small) calorie is a thermochemical unit of heat energy equal to 4.184 joules, historically the energy needed to raise 1 gram of water by 1°C. 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 calories 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.