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Energy & Work Converter

Convert Joules, Kilowatt-hours (kWh), Calories, BTUs, and Foot-pounds.

Energy & Work Converter

Convert between Joules, Kilowatt-hours, Calories, BTUs, and Foot-pounds.

Source Unit
Target Unit
0.27777778
💡 1 MJ = 0.277778 kWh
Exact Derivation: 1 MJ × (0.277778) = 0.277778 kWh
100% Client-Side Pure Precision

Instant Multi-Unit Comparison Table

Simultaneous value of 1 MJ across all units in Energy & Work.

MegajouleMJ
1
Kilowatt-HourkWh
0.277778
Watt-HourWh
277.777778
Kilocalorie (Food Calorie)kcal
239.005736
Gram Caloriecal
239,005.736138
KilojoulekJ
1,000
JouleJ
1,000,000
British Thermal Unit (BTU)BTU
947.81712
Foot-Poundft·lbf
737,562.149277
ElectronvolteV
6.2415e+24

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

1

Input Energy Value

Type the energy or work quantity.

2

Select Unit Types

Choose from Joules, kWh, Calories, or BTUs.

3

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).