The gigajoule (GJ) is a unit of energy equivalent to one billion joules. It offers a convenient metric for measuring substantial energy quantities and is frequently used in contexts like natural gas and electrical energy. For instance, one gigajoule can power an average household’s energy needs for about three days, depending on energy consumption habits. Interestingly, it’s also roughly equivalent to the energy contained in 26.8 gallons of gasoline, highlighting its significance in both domestic and industrial contexts.
Beyond its everyday applications, the gigajoule also plays a critical role in scientific fields. In the realm of seismology, for example, a moderate earthquake releases energy comparable to a few gigajoules, illustrating the vast power of natural phenomena. This demonstrates how understanding gigajoules can offer insights into both human technology and the forces of nature.
The kilowatt-hour (kWh) is a unit of energy that represents the amount of energy consumed or produced. Although commonly associated with electric bills, it has fascinating real-world applications. For example, one kWh can power a 100-watt incandescent light bulb for 10 hours or a modern energy-efficient LED bulb for around 50 hours. Interestingly, the kWh is not just for electricity—it’s also used in renewable energy systems to measure solar and wind power production efficiencies.
Beyond its practical uses, kilowatt-hours reveal intriguing insights into our energy consumption patterns. For instance, the average U.S. home consumes about 877 kWh per month, providing a benchmark for households exploring energy-saving measures. The kWh also serves as a universal language in global energy markets, standardizing costs and outputs across international borders.
Gigajoules | Kilowatt-hours |
---|---|
0
GJ
|
0
kWh
|
0.1
GJ
|
27.77778
kWh
|
0.2
GJ
|
55.55556
kWh
|
0.3
GJ
|
83.33333
kWh
|
0.4
GJ
|
111.11111
kWh
|
0.5
GJ
|
138.88889
kWh
|
0.6
GJ
|
166.66667
kWh
|
0.7
GJ
|
194.44444
kWh
|
0.8
GJ
|
222.22222
kWh
|
0.9
GJ
|
250
kWh
|
1
GJ
|
277.77778
kWh
|
1.1
GJ
|
305.55556
kWh
|
1.2
GJ
|
333.33333
kWh
|
1.3
GJ
|
361.11111
kWh
|
1.4
GJ
|
388.88889
kWh
|
1.5
GJ
|
416.66667
kWh
|
1.6
GJ
|
444.44444
kWh
|
1.7
GJ
|
472.22222
kWh
|
1.8
GJ
|
500
kWh
|
1.9
GJ
|
527.77778
kWh
|
2
GJ
|
555.55556
kWh
|
2.1
GJ
|
583.33333
kWh
|
2.2
GJ
|
611.11111
kWh
|
2.3
GJ
|
638.88889
kWh
|
2.4
GJ
|
666.66667
kWh
|
2.5
GJ
|
694.44444
kWh
|
2.6
GJ
|
722.22222
kWh
|
2.7
GJ
|
750
kWh
|
2.8
GJ
|
777.77778
kWh
|
2.9
GJ
|
805.55556
kWh
|
3
GJ
|
833.33333
kWh
|
3.1
GJ
|
861.11111
kWh
|
3.2
GJ
|
888.88889
kWh
|
3.3
GJ
|
916.66667
kWh
|
3.4
GJ
|
944.44444
kWh
|
3.5
GJ
|
972.22222
kWh
|
3.6
GJ
|
1000
kWh
|
3.7
GJ
|
1027.77778
kWh
|
3.8
GJ
|
1055.55556
kWh
|
3.9
GJ
|
1083.33333
kWh
|
4
GJ
|
1111.11111
kWh
|
4.1
GJ
|
1138.88889
kWh
|
4.2
GJ
|
1166.66667
kWh
|
4.3
GJ
|
1194.44444
kWh
|
4.4
GJ
|
1222.22222
kWh
|
4.5
GJ
|
1250
kWh
|
4.6
GJ
|
1277.77778
kWh
|
4.7
GJ
|
1305.55556
kWh
|
4.8
GJ
|
1333.33333
kWh
|
4.9
GJ
|
1361.11111
kWh
|
5
GJ
|
1388.88889
kWh
|
5.1
GJ
|
1416.66667
kWh
|
5.2
GJ
|
1444.44444
kWh
|
5.3
GJ
|
1472.22222
kWh
|
5.4
GJ
|
1500
kWh
|
5.5
GJ
|
1527.77778
kWh
|
5.6
GJ
|
1555.55556
kWh
|
5.7
GJ
|
1583.33333
kWh
|
5.8
GJ
|
1611.11111
kWh
|
5.9
GJ
|
1638.88889
kWh
|
6
GJ
|
1666.66667
kWh
|
6.1
GJ
|
1694.44444
kWh
|
6.2
GJ
|
1722.22222
kWh
|
6.3
GJ
|
1750
kWh
|
6.4
GJ
|
1777.77778
kWh
|
6.5
GJ
|
1805.55556
kWh
|
6.6
GJ
|
1833.33333
kWh
|
6.7
GJ
|
1861.11111
kWh
|
6.8
GJ
|
1888.88889
kWh
|
6.9
GJ
|
1916.66667
kWh
|
7
GJ
|
1944.44444
kWh
|
7.1
GJ
|
1972.22222
kWh
|
7.2
GJ
|
2000
kWh
|
7.3
GJ
|
2027.77778
kWh
|
7.4
GJ
|
2055.55556
kWh
|
7.5
GJ
|
2083.33333
kWh
|
7.6
GJ
|
2111.11111
kWh
|
7.7
GJ
|
2138.88889
kWh
|
7.8
GJ
|
2166.66667
kWh
|
7.9
GJ
|
2194.44444
kWh
|
8
GJ
|
2222.22222
kWh
|
8.1
GJ
|
2250
kWh
|
8.2
GJ
|
2277.77778
kWh
|
8.3
GJ
|
2305.55556
kWh
|
8.4
GJ
|
2333.33333
kWh
|
8.5
GJ
|
2361.11111
kWh
|
8.6
GJ
|
2388.88889
kWh
|
8.7
GJ
|
2416.66667
kWh
|
8.8
GJ
|
2444.44444
kWh
|
8.9
GJ
|
2472.22222
kWh
|
9
GJ
|
2500
kWh
|
9.1
GJ
|
2527.77778
kWh
|
9.2
GJ
|
2555.55556
kWh
|
9.3
GJ
|
2583.33333
kWh
|
9.4
GJ
|
2611.11111
kWh
|
9.5
GJ
|
2638.88889
kWh
|
9.6
GJ
|
2666.66667
kWh
|
9.7
GJ
|
2694.44444
kWh
|
9.8
GJ
|
2722.22222
kWh
|
9.9
GJ
|
2750
kWh
|
10
GJ
|
2777.77778
kWh
|
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