Watt-hours to Joules Converter
Convert Wh to Joules instantly.
Free online converter with accurate results and clear explanations.
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Frequently Asked Questions
Common questions about the Watt-hours to Joules Converter
Multiply Wh by 3600. Example: 1 Wh = 3600 J. (1 watt = 1 joule/second, 1 hour = 3600 seconds)
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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.