erg to J Converter
Convert Ergs to Joules instantly.
Free online converter with accurate results and clear explanations.
Last updated · How we build & check our tools
Frequently Asked Questions
Common questions about the erg to J Converter
CGS unit of energy. 1 erg = 10⁻⁷ joules. Very small—used in physics and astronomy.
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Sources & References
International System of Units (SI): energy, work and heat
Energy, work and heat is measured in the joule (J); 1 cal = 4.184 J. Conversions between SI and other units use exact, internationally agreed factors maintained by NIST.
International System of Units (SI)
Authoritative definitions for energy, work and heat, from the BIPM SI Brochure (9th edition), the defining reference for the SI.