An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule.
Ergs to Kilocalories
Convert Erg (erg) to Kilocalorie (kcal) instantly with an exact formula, conversion table, and FAQ.
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Convert ergs (erg) to kilocalories (kcal) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A kilocalorie (kcal) equals 1,000 small calories and is the unit behind the food "Calorie" shown on nutrition labels.
kcal = erg × 2.390057361e-11
Results update instantly for Ergs to Kilocalories conversions.
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Formula
kcal = erg × 2.390057361e-11
erg = kcal × 41840000000
Conversion table
| 1 erg | 2.390057e-11 kcal |
| 5 erg | 1.195029e-10 kcal |
| 10 erg | 2.390057e-10 kcal |
| 20 erg | 4.780115e-10 kcal |
| 50 erg | 1.195029e-09 kcal |
| 100 erg | 2.390057e-09 kcal |
| 500 erg | 1.195029e-08 kcal |
| 1000 erg | 2.390057e-08 kcal |
Related conversions
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How the formula works
Both erg and kilocalorie measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in ergs by 2.390057361e-11 to get kilocalories. To reverse the conversion, multiply a kilocalorie value by 41840000000 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 Kilocalorie (kcal)?
A kilocalorie (kcal) equals 1,000 small calories and is the unit behind the food "Calorie" shown on nutrition labels.
How do I convert ergs to kilocalories?
Multiply the erg value by 2.390057361e-11 to get the equivalent in kilocalories. For example, 5 erg × 2.390057361e-11 = 1.195029e-10 kcal.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 2.390057361e-11 is an exact, non-rounded value.
Can I convert kilocalories back to ergs?
Yes. Divide the kilocalorie value by 2.390057361e-11, or multiply it by 41840000000, to get ergs.
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About converting ergs to kilocalories
An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule. A kilocalorie (kcal) equals 1,000 small calories and is the unit behind the food "Calorie" shown on nutrition labels.
Use this calculator to move between ergs and kilocalories accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.