Energy Converter

Convert between chemical, electrical and physical energy units.

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Related Conversions
10 MJ to GJ 50 MJ to GJ 54 MJ to GJ 66 MJ to GJ 144 MJ to GJ 240 MJ to GJ 500 MJ to GJ 600 MJ to GJ 1,000 MJ to GJ 1,200 MJ to GJ 10,000 MJ to GJ 50,000 MJ to GJ
Reverse Conversions
25 GJ to MJ 48 GJ to MJ 54 GJ to MJ 96 GJ to MJ 120 GJ to MJ 240 GJ to MJ 250 GJ to MJ 600 GJ to MJ 1,000 GJ to MJ 2,500 GJ to MJ 5,000 GJ to MJ 50,000 GJ to MJ
More Energy Conversions
100 J to cal 1 GJ to kWh 1 GJ to MJ 1 MJ to BTU 100 kJ to kcal 1 MJ to kWh 2 GJ to MJ 2 MJ to BTU 250 cal to J 1 kWh to cal

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Popular Conversions

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Common Benchmarks

Slice of bread 330 kJ
AA battery 10 kJ
Match stick 1 kJ
Laptop full charge 200 kJ
Microwave 10 minutes 0.17 kWh
Boil 1 liter water 334 kJ

Formula

GJ = MJ × 0.001

Example

Example: convert 60 megajoules to gigajoules.

60 MJ = 0.06 GJ

Conversion table

megajoules (MJ) gigajoules (GJ)
1 MJ 0.001 GJ
2 MJ 0.002 GJ
5 MJ 0.005 GJ
10 MJ 0.01 GJ
20 MJ 0.02 GJ
50 MJ 0.05 GJ
100 MJ 0.1 GJ

Explanation

These are both units.

How to convert megajoules to gigajoules

  1. Start with the value in megajoules (MJ).
  2. Multiply it by 0.001.
  3. The result is the measurement in gigajoules (GJ).

Example: 60 MJ → 0.06 GJ

Frequently Asked Questions

How much is 60 megajoules in gigajoules?

60 megajoules equals 0.06 gigajoules.

How many gigajoules is 1 megajoule?

1 megajoule equals 0.001 gigajoules.

How many megajoules is 1 gigajoule?

1 gigajoule equals 1000 megajoules.

What is the difference between megajoules and gigajoules?

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 gigajoules 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 0.001 gigajoules?

Because the units are defined with a fixed relationship. To convert megajoules to gigajoules, multiply by that factor.