Convert Kilowatt-hour (kWh) (kwh) to Joule (J) (j)
Category: Energy
1 kwh = 3600000 j
High-precision rounding: 6 decimals
How to convert kilowatt-hour (kwh) to joule (j)
We convert by pivoting through the SI base unit for Energy and applying exact factors where applicable.
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Quick conversion table
Handy values for Kilowatt-hour (kWh) → Joule (J). Click a value to open that exact result.
Conversion formula
Linear unit conversions use standardized factors; many are exact by definition (e.g., 1 in = 25.4 mm, 1 ft = 0.3048 m).
Common mistakes
- Confusing calorie (cal) with kilocalorie (kcal) on nutrition labels.
- Treating BTU definitions interchangeably without noting standard (IT vs other).
Unit facts
- Kilowatt-hour (kWh): Kilowatt-hour (kWh) = 1,000 Wh = 3.6 MJ; main electricity billing unit.
- Joule (J): Joule (J) is the SI unit of energy: 1 J = 1 N·m = 1 kg·m²/s².
About Energy
Energy is the capacity to do work. Joules form the SI base; Wh/kWh align with metering and batteries; calories and BTU survive in nutrition and HVAC. Conversions bridge mechanical, thermal, and electrical perspectives.
About Kilowatt-hour (kWh)
Kilowatt-hour (kWh)
Equals 1,000 Wh. Used by utilities and home energy monitoring; easy to relate to monthly costs.
History: Standard billing unit; maps neatly to real-world appliance usage and tariffs.
About Joule (J)
Joule (J)
SI energy unit equal to N·m. Fundamental in physics, electronics (J = W·s), and thermodynamics.
History: Named after James P. Joule. Became universal with SI coherence across mechanical and electrical domains.
Related conversions from kwh
- kwh → btu BTU (IT)
- kwh → cal Calorie (cal)
- kwh → kcal Kilocalorie (kcal)
- kwh → wh Watt-hour (Wh)