📏Length⚖️Weight🌡️Temperature🔲Area🧪Volume🏃Speed⏰Time💾Data⚡Power🌊Pressure🔋Energy📐Angle⛽Fuel Efficiency🔌Wire (AWG)💧Flow Rate
Energy Converter
Free energy converter. Convert between joule, calorie, kilowatt-hour, BTU and other energy units.
=
0
Convert between joule, kilojoule, calorie, kilocalorie, BTU and kWh. Useful for nutrition, electricity and physics.
Unit conversions
- 1 kWh = 3.6 MJ
- 1 kcal = 4.184 kJ
- 1 BTU ≈ 1.05506 kJ
Common examples
- Example: 500 kcal ≈ 2.092 MJ
- Example: 1 kWh = 3.6 MJ
Common pitfalls
- Nutrition "calorie" is actually kilocalorie
- Energy (Wh) vs power (W)
FAQ
- How many kJ is 1 kcal?
- 4.184 kJ.
- How many kWh is 3600 kJ?
- 1 kWh.
Related converters
Factors per BIPM/NIST. Rounded reasonably.