Energy Converter

Convert between chemical, electrical and physical energy units.

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Related Conversions
5 J to MJ 25 J to MJ 250 J to MJ 2,500 J to MJ 100,000 J to MJ 900,000 J to MJ 1,100,000 J to MJ 1,200,000 J to MJ 2,000,000 J to MJ 4,000,000 J to MJ 10,000,000 J to MJ 20,000,000 J to MJ
Reverse Conversions
10 MJ to J 25 MJ to J 50 MJ to J 100 MJ to J 500 MJ to J 1,000 MJ to J 10,000 MJ to J 50,000 MJ to J 1,200,000 MJ to J 1,600,000 MJ to J 2,000,000 MJ to J 20,000,000 MJ to J
More Energy Conversions
1 MJ to BTU 100 J to cal 1 GJ to kWh 1 GJ to MJ 2 MJ to BTU 100 kJ to kcal 1 MJ to kWh 2 GJ to MJ 10 BTU to J

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Popular Conversions

Kilowatt-Hours to Megajoules Megajoules to Kilowatt-Hours Joules to Calories Kilocalories to Kilojoules British Thermal Units to Joules Watt-Hours to Joules

Common Benchmarks

Slice of bread 330 kJ
Microwave 10 minutes 0.17 kWh
Cup of coffee 5 kJ
1 kWh 3.6 MJ
Gasoline liter 34 MJ
AA battery 10 kJ

Formula

MJ = J × 0.000001

Example

Example: convert 1000000 joules to megajoule.

1000000 J = 1 MJ

Conversion table

joules (J) megajoules (MJ)
1 J 0.000001 MJ
2 J 0.000002 MJ
5 J 0.000005 MJ
10 J 0.00001 MJ
20 J 0.00002 MJ
50 J 0.00005 MJ
100 J 0.0001 MJ

Explanation

These are both units.

How to convert joules to megajoules

  1. Start with the value in joules (J).
  2. Multiply it by 0.000001.
  3. The result is the measurement in megajoules (MJ).

Example: 1000000 J → 1 MJ

Frequently Asked Questions

How much is 1000000 joules in megajoules?

1000000 joules equals 1 megajoule.

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.