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Cup of coffee
5 kJ
1 kWh
3.6 MJ
AA battery
10 kJ
Phone battery
40 kJ
Gasoline liter
34 MJ
100 W bulb for 1 hour
0.1 kWh
Frequently Asked Questions
How much is 69.1 joules in megajoules?
69.1 joules equals 0.0000691 megajoules.
How many megajoules is 1 joule?
1 joule equals 0.000001 megajoules.
How many joules is 1 megajoule?
1 megajoule equals 1000000 joules.
What is the difference between joules and megajoules?
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 joules and megajoules 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 joule equal 0.000001 megajoules?
Because the units are defined with a fixed relationship. To convert joules to megajoules, multiply by that factor.