About Energy & Work Converter
Convert energy and work units across physics, dietary nutrition, and electrical utility standards. Convert Joules, kWh, food Calories, BTU, and electronvolts.
Key Capabilities & Features
- Covers Joules, Megajoules, kWh, Watt-hours, food kcal, gram cal, BTU, ft-lbf, and eV
- Electrical utility and solar power battery unit conversion
- Nutritional dietary calorie to energy equivalency
- Instant copy of results and derivations
How to Use Energy & Work Converter
Input Energy Value
Type the energy or work quantity.
Select Unit Types
Choose from Joules, kWh, Calories, or BTUs.
View Comparison
Review converted values across scientific and utility standards.
Privacy & In-Browser Execution Guarantee
All energy calculations run privately on your device.
Frequently Asked Questions
How many Joules are in 1 kWh?
1 Kilowatt-hour (kWh) equals exactly 3,600,000 Joules (3.6 Megajoules).
What is the difference between a calorie and a food Calorie?
A food Calorie (with a capital C) is actually a kilocalorie (kcal), which equals 1,000 small gram calories (approx. 4,184 Joules).