Convert Gigajoules to British Thermal Units

Enter the energy in gigajoules below to get the value converted to british thermal units.

Results in British Thermal Units:
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1 GJ = 947,817.120313 BTU

How to Convert Gigajoules to British Thermal Units

To convert a gigajoule measurement to a british thermal unit measurement, multiply the energy by the conversion ratio. One gigajoule is equal to 947,817.120313 british thermal units, so use this simple formula to convert:

british thermal units = gigajoules × 947,817.120313

The energy in british thermal units is equal to the gigajoules multiplied by 947,817.120313.

For example, here's how to convert 5 gigajoules to british thermal units using the formula above.
5 GJ = (5 × 947,817.120313) = 4,739,085.601567 BTU

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


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.

British Thermal Units

British thermal units are a measure of heat energy. Specifically, one british thermal unit is equal to the amount of heat energy required to increase the temperature of one pound of water one degree Fahrenheit. They are often used as a way to rate the energy heat producing appliances such furnaces, and to price heating fuels such as natural gas.

The british thermal unit is a US customary unit of energy. British thermal units can be abbreviated as BTU, for example 1 british thermal unit can be written as 1 BTU.

Gigajoule Measurements and Equivalent British Thermal Unit Conversions

Common gigajoule values converted to the equivalent british thermal unit value
Gigajoules British Thermal Units
1 GJ 947,817 BTU
2 GJ 1,895,634 BTU
3 GJ 2,843,451 BTU
4 GJ 3,791,268 BTU
5 GJ 4,739,086 BTU
6 GJ 5,686,903 BTU
7 GJ 6,634,720 BTU
8 GJ 7,582,537 BTU
9 GJ 8,530,354 BTU
10 GJ 9,478,171 BTU
11 GJ 10,425,988 BTU
12 GJ 11,373,805 BTU
13 GJ 12,321,623 BTU
14 GJ 13,269,440 BTU
15 GJ 14,217,257 BTU
16 GJ 15,165,074 BTU
17 GJ 16,112,891 BTU
18 GJ 17,060,708 BTU
19 GJ 18,008,525 BTU
20 GJ 18,956,342 BTU
21 GJ 19,904,160 BTU
22 GJ 20,851,977 BTU
23 GJ 21,799,794 BTU
24 GJ 22,747,611 BTU
25 GJ 23,695,428 BTU
26 GJ 24,643,245 BTU
27 GJ 25,591,062 BTU
28 GJ 26,538,879 BTU
29 GJ 27,486,696 BTU
30 GJ 28,434,514 BTU
31 GJ 29,382,331 BTU
32 GJ 30,330,148 BTU
33 GJ 31,277,965 BTU
34 GJ 32,225,782 BTU
35 GJ 33,173,599 BTU
36 GJ 34,121,416 BTU
37 GJ 35,069,233 BTU
38 GJ 36,017,051 BTU
39 GJ 36,964,868 BTU
40 GJ 37,912,685 BTU

More Gigajoule Energy Conversions

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
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 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
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