6 Supported Units
Energy & Work Converter
Energy conversions are vital in nutritional science, electrical utility billing, physics, and renewable energy monitoring.
Common Energy & Work Converter Conversions
| Unit Standard | Target Equivalent | Formula | Practical Example |
|---|---|---|---|
| 1 Kilocalorie (kcal) | 4,184 Joules (4.184 kJ) | kcal × 4.184 = kJ | 2,000 kcal = 8,368 kJ |
| 1 Kilowatt-hour (kWh) | 3.6 Megajoules (MJ) | 1 kWh = 3,600,000 J | 10 kWh = 36 MJ |
How Energy & Work Converter Math Works
Energy in SI is measured in Joules (1 Watt for 1 second). One dietary food calorie (Cal or kcal) equals 4,184 Joules. One kilowatt-hour (kWh) equals 3,600,000 Joules.
Frequently Asked Questions
What is the difference between a small calorie (cal) and a food calorie (Cal/kcal)?
A small calorie (cal) is the energy needed to raise 1 gram of water by 1°C. Nutrition labels use food calories (often capitalized as Calorie or kcal), which equal 1,000 small calories or 4,184 Joules.