An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule.
Ergs to Picojoules
Convert Erg (erg) to Picojoule (pJ) instantly with an exact formula, conversion table, and FAQ.
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Convert ergs (erg) to picojoules (pJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A picojoule (pJ) is a metric-prefixed unit of energy equal to 10-12 joules, a fraction of a single joule, using the SI pico prefix.
pJ = erg × 100000
Results update instantly for Ergs to Picojoules conversions.
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Formula
pJ = erg × 100000
erg = pJ × 0.00001
Conversion table
| 1 erg | 100000 pJ |
| 5 erg | 500000 pJ |
| 10 erg | 1.000000e+06 pJ |
| 20 erg | 2.000000e+06 pJ |
| 50 erg | 5.000000e+06 pJ |
| 100 erg | 1.000000e+07 pJ |
| 500 erg | 5.000000e+07 pJ |
| 1000 erg | 1.000000e+08 pJ |
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How the formula works
Both erg and picojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in ergs by 100000 to get picojoules. To reverse the conversion, multiply a picojoule value by 0.00001 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 Picojoule (pJ)?
A picojoule (pJ) is a metric-prefixed unit of energy equal to 10-12 joules, a fraction of a single joule, using the SI pico prefix.
How do I convert ergs to picojoules?
Multiply the erg value by 100000 to get the equivalent in picojoules. For example, 5 erg × 100000 = 500000 pJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 100000 is an exact, non-rounded value.
Can I convert picojoules back to ergs?
Yes. Divide the picojoule value by 100000, or multiply it by 0.00001, to get ergs.
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About converting ergs to picojoules
An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule. A picojoule (pJ) is a metric-prefixed unit of energy equal to 10-12 joules, a fraction of a single joule, using the SI pico prefix.
Use this calculator to move between ergs and picojoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.