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Boil 1 liter water
334 kJ
Slice of bread
330 kJ
Match stick
1 kJ
Microwave 10 minutes
0.17 kWh
Gasoline liter
34 MJ
Food calorie
4184 J
Frequently Asked Questions
How much is 5.5 megajoules in joules?
5.5 megajoules equals 5500000 joules.
How many joules is 1 megajoule?
1 megajoule equals 1000000 joules.
How many megajoules is 1 joule?
1 joule equals 0.000001 megajoules.
What is the difference between megajoules and joules?
Both measure energy in SI. The main difference is usually scale: some units are convenient for smaller values, while others are used to express larger values more practically.
Where are megajoules and joules used?
They are used in physics and engineering to measure work, energy, and heat; the most practical unit depends on the magnitude.
Why does 1 megajoule equal 1000000 joules?
Because the units are defined with a fixed relationship. To convert megajoules to joules, multiply by that factor.