kWh to Joules (Kilowatt-Hours to Joules) Converter
How to convert kWh To Joules
1 kWh = 3,600,000 J.
To convert kwh to joules, use the formula: 1 kWh = 3,600,000 J. Enter any value in the input field above and the result appears instantly. Click the ⇄ button to reverse the conversion direction.
All conversions use precise mathematical constants validated against international SI standards (NIST and ISO 80000), accurate to 8 significant figures.
Frequently Asked Questions
How many Joules are in one Kilowatt-hour?
1 kWh = 3,600,000 J. 1 kilowatt-hour = 3,600,000 joules (3.6 MJ). kWh is used for electrical energy billing.
What is the formula to convert Kilowatt-hour to Joule?
1 kWh = 3,600,000 J. Multiply the Kilowatt-hour value by the conversion factor to get Joule.
How do I convert Joules To kWh?
Use the Joules To kWh converter — formula: 1 kWh = 3,600,000 J. Click the ⇄ switch button above for the reverse conversion.
Is this Kilowatt-hour to Joule converter free?
Yes — completely free, no registration required. Works instantly in your browser using precise mathematical constants validated against SI standards.