Convert Gigajoules to Megajoules

Enter the energy in gigajoules below to get the value converted to megajoules.

Results in Megajoules:

1 GJ = 1,000 MJ

Do you want to convert megajoules to gigajoules?

How to Convert Gigajoules to Megajoules

To convert a gigajoule measurement to a megajoule measurement, multiply the energy by the conversion ratio. One gigajoule is equal to 1,000 megajoules, so use this simple formula to convert:

megajoules = gigajoules × 1,000

The energy in megajoules is equal to the gigajoules multiplied by 1,000.

For example, here's how to convert 5 gigajoules to megajoules using the formula above.

5 GJ = (5 × 1,000) = 5,000 MJ

Gigajoules and megajoules are both units used to measure energy. Keep reading to learn more about each unit of measure.

Gigajoules

One gigajoule is equal to 1,000,000,000 joules, which are the energy equal to the force on an object of one newton at a distance of one meter.

The gigajoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "giga" is the prefix for 10⁶. Gigajoules can be abbreviated as GJ, for example 1 gigajoule can be written as 1 GJ.

Megajoules

One megajoule is equal to 1,000,000 joules, which are the energy equal to the force on an object of one newton at a distance of one meter.

The megajoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "mega" is the prefix for 10⁹. Megajoules can be abbreviated as MJ, for example 1 megajoule can be written as 1 MJ.

Gigajoule Measurements and Equivalent Megajoule Conversions

Common gigajoule values converted to the equivalent megajoule value
Gigajoules	Megajoules
1 GJ	1,000 MJ
2 GJ	2,000 MJ
3 GJ	3,000 MJ
4 GJ	4,000 MJ
5 GJ	5,000 MJ
6 GJ	6,000 MJ
7 GJ	7,000 MJ
8 GJ	8,000 MJ
9 GJ	9,000 MJ
10 GJ	10,000 MJ
11 GJ	11,000 MJ
12 GJ	12,000 MJ
13 GJ	13,000 MJ
14 GJ	14,000 MJ
15 GJ	15,000 MJ
16 GJ	16,000 MJ
17 GJ	17,000 MJ
18 GJ	18,000 MJ
19 GJ	19,000 MJ
20 GJ	20,000 MJ
21 GJ	21,000 MJ
22 GJ	22,000 MJ
23 GJ	23,000 MJ
24 GJ	24,000 MJ
25 GJ	25,000 MJ
26 GJ	26,000 MJ
27 GJ	27,000 MJ
28 GJ	28,000 MJ
29 GJ	29,000 MJ
30 GJ	30,000 MJ
31 GJ	31,000 MJ
32 GJ	32,000 MJ
33 GJ	33,000 MJ
34 GJ	34,000 MJ
35 GJ	35,000 MJ
36 GJ	36,000 MJ
37 GJ	37,000 MJ
38 GJ	38,000 MJ
39 GJ	39,000 MJ
40 GJ	40,000 MJ

More Gigajoule Energy Conversions

Joules

Convert to Joules: 1 GJ is equal to 1,000,000,000 joules
Convert to Kilojoules: 1 GJ is equal to 1,000,000 kilojoules

Calories

Convert to Calories: 1 GJ is equal to 239,005,736.1 calories
Convert to Kilocalories: 1 GJ is equal to 239,005.7 kilocalories
Convert to Megacalories: 1 GJ is equal to 239.005736 megacalories

Watts x Time

Convert to Watt-hours: 1 GJ is equal to 277,777.8 watt-hours
Convert to Kilowatt-hours: 1 GJ is equal to 277.777778 kilowatt-hours
Convert to Megawatt-hours: 1 GJ is equal to 0.277778 megawatt-hours
Convert to Watt-seconds: 1 GJ is equal to 1,000,000,000 watt-seconds

Thermal Units

Convert to British Thermal Units: 1 GJ is equal to 947,817.1 british thermal units
Convert to Million BTU: 1 GJ is equal to 0.947817 million BTU
Convert to Therms: 1 GJ is equal to 9.478171 therms
Convert to Quads: 1 GJ is equal to 9.4782E-10 quads

Electronvolts

Convert to Electronvolts: 1 GJ is equal to 6,241,500,000,000,000,443,161,772,032 electronvolts
Convert to Kiloelectronvolts: 1 GJ is equal to 6,241,499,999,999,999,833,276,416 kiloelectronvolts
Convert to Megaelectronvolts: 1 GJ is equal to 6,241,499,999,999,999,606,784 megaelectronvolts