Convert Gigajoules to Calories

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

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1 GJ = 239,005,736.13767 cal

How to Convert Gigajoules to Calories

To convert a gigajoule measurement to a calorie measurement, multiply the energy by the conversion ratio. One gigajoule is equal to 239,005,736.13767 calories, so use this simple formula to convert:

calories = gigajoules × 239,005,736.13767

The energy in calories is equal to the gigajoules multiplied by 239,005,736.13767.

For example, here's how to convert 5 gigajoules to calories using the formula above.
5 GJ = (5 × 239,005,736.13767) = 1,195,028,680.6883 cal

Gigajoules and calories 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.

Calories

One calorie is equal to the heat needed to raise the temperature of one gram of water from 14.5 to 15.5 degrees Celsius.

When measuring the energy content in foods, the large calorie, or kilocalorie is used, but it's often still just called a "calorie." When both the calorie and large calorie are used in the same context it is common to refer to the calorie as a "small calorie."

Calories can be abbreviated as cal, for example 1 calorie can be written as 1 cal.

Gigajoule Measurements and Equivalent Calorie Conversions

Common gigajoule values converted to the equivalent calorie value
Gigajoules Calories
1 GJ 239,005,736 cal
2 GJ 478,011,472 cal
3 GJ 717,017,208 cal
4 GJ 956,022,945 cal
5 GJ 1,195,028,681 cal
6 GJ 1,434,034,417 cal
7 GJ 1,673,040,153 cal
8 GJ 1,912,045,889 cal
9 GJ 2,151,051,625 cal
10 GJ 2,390,057,361 cal
11 GJ 2,629,063,098 cal
12 GJ 2,868,068,834 cal
13 GJ 3,107,074,570 cal
14 GJ 3,346,080,306 cal
15 GJ 3,585,086,042 cal
16 GJ 3,824,091,778 cal
17 GJ 4,063,097,514 cal
18 GJ 4,302,103,250 cal
19 GJ 4,541,108,987 cal
20 GJ 4,780,114,723 cal
21 GJ 5,019,120,459 cal
22 GJ 5,258,126,195 cal
23 GJ 5,497,131,931 cal
24 GJ 5,736,137,667 cal
25 GJ 5,975,143,403 cal
26 GJ 6,214,149,140 cal
27 GJ 6,453,154,876 cal
28 GJ 6,692,160,612 cal
29 GJ 6,931,166,348 cal
30 GJ 7,170,172,084 cal
31 GJ 7,409,177,820 cal
32 GJ 7,648,183,556 cal
33 GJ 7,887,189,293 cal
34 GJ 8,126,195,029 cal
35 GJ 8,365,200,765 cal
36 GJ 8,604,206,501 cal
37 GJ 8,843,212,237 cal
38 GJ 9,082,217,973 cal
39 GJ 9,321,223,709 cal
40 GJ 9,560,229,446 cal

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
Convert to Megajoules
1 GJ is equal to 1,000 megajoules
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