An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule.
Ergs to Attojoules
Convert Erg (erg) to Attojoule (aJ) instantly with an exact formula, conversion table, and FAQ.
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Convert ergs (erg) 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 = erg × 100000000000
Results update instantly for Ergs to Attojoules conversions.
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Formula
aJ = erg × 100000000000
erg = aJ × 1.000000000e-11
Conversion table
| 1 erg | 1.000000e+11 aJ |
| 5 erg | 5.000000e+11 aJ |
| 10 erg | 1.000000e+12 aJ |
| 20 erg | 2.000000e+12 aJ |
| 50 erg | 5.000000e+12 aJ |
| 100 erg | 1.000000e+13 aJ |
| 500 erg | 5.000000e+13 aJ |
| 1000 erg | 1.000000e+14 aJ |
Related conversions
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How the formula works
Both erg and attojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in ergs by 100000000000 to get attojoules. To reverse the conversion, multiply a attojoule value by 1.000000000e-11 to get back to ergs.
Frequently asked questions
What is Erg (erg)?
An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule.
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 ergs to attojoules?
Multiply the erg value by 100000000000 to get the equivalent in attojoules. For example, 5 erg × 100000000000 = 5.000000e+11 aJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 100000000000 is an exact, non-rounded value.
Can I convert attojoules back to ergs?
Yes. Divide the attojoule value by 100000000000, or multiply it by 1.000000000e-11, to get ergs.
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About converting ergs to attojoules
An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule. 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 ergs 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.