Energy Conversion Calculator
About Energy Conversion Calculator
Energy Converter — convert between Joules, calories, kWh, BTU and more. Helpful for cooking, appliance specs, and physics calculations.
How to use
- Enter the energy value.
- Select source and target units (J, cal, kWh, BTU).
- Click Convert to see results.
Examples
1 kWh = 3.6×106 J; 1 calorie ≈ 4.184 J.
FAQs
When should I use kWh vs J?
kWh is convenient for electrical billing; Joules are used for precise scientific calculations.
For appliance comparisons, use kWh; for lab work, prefer Joules or calories as appropriate.