Gigajoules to Kilojoules (GJ → kJ)
Formula
1 GJ = 1000000 kJConversion Table
| GJ | kJ |
|---|---|
| 0 | 0 |
| 1.0000 | 1,000,000 |
| 2.0000 | 2,000,000 |
| 3.0000 | 3,000,000 |
| 4.0000 | 4,000,000 |
| 5.0000 | 5,000,000 |
| 6.0000 | 6,000,000 |
| 7.0000 | 7,000,000 |
| 8.0000 | 8,000,000 |
| 9.0000 | 9,000,000 |
| 10.000 | 10,000,000 |
| 11.000 | 11,000,000 |
| 12.000 | 12,000,000 |
| 13.000 | 13,000,000 |
| 14.000 | 14,000,000 |
| 15.000 | 15,000,000 |
| 16.000 | 16,000,000 |
| 17.000 | 17,000,000 |
| 18.000 | 18,000,000 |
| 19.000 | 19,000,000 |
| GJ | kJ |
|---|---|
| 20.000 | 20,000,000 |
| 21.000 | 21,000,000 |
| 22.000 | 22,000,000 |
| 23.000 | 23,000,000 |
| 24.000 | 24,000,000 |
| 25.000 | 25,000,000 |
| 26.000 | 26,000,000 |
| 27.000 | 27,000,000 |
| 28.000 | 28,000,000 |
| 29.000 | 29,000,000 |
| 30.000 | 30,000,000 |
| 31.000 | 31,000,000 |
| 32.000 | 32,000,000 |
| 33.000 | 33,000,000 |
| 34.000 | 34,000,000 |
| 35.000 | 35,000,000 |
| 36.000 | 36,000,000 |
| 37.000 | 37,000,000 |
| 38.000 | 38,000,000 |
| 39.000 | 39,000,000 |
| GJ | kJ |
|---|---|
| 40.000 | 40,000,000 |
| 41.000 | 41,000,000 |
| 42.000 | 42,000,000 |
| 43.000 | 43,000,000 |
| 44.000 | 44,000,000 |
| 45.000 | 45,000,000 |
| 46.000 | 46,000,000 |
| 47.000 | 47,000,000 |
| 48.000 | 48,000,000 |
| 49.000 | 49,000,000 |
| 50.000 | 50,000,000 |
| 51.000 | 51,000,000 |
| 52.000 | 52,000,000 |
| 53.000 | 53,000,000 |
| 54.000 | 54,000,000 |
| 55.000 | 55,000,000 |
| 56.000 | 56,000,000 |
| 57.000 | 57,000,000 |
| 58.000 | 58,000,000 |
| 59.000 | 59,000,000 |
| GJ | kJ |
|---|---|
| 60.000 | 60,000,000 |
| 61.000 | 61,000,000 |
| 62.000 | 62,000,000 |
| 63.000 | 63,000,000 |
| 64.000 | 64,000,000 |
| 65.000 | 65,000,000 |
| 66.000 | 66,000,000 |
| 67.000 | 67,000,000 |
| 68.000 | 68,000,000 |
| 69.000 | 69,000,000 |
| 70.000 | 70,000,000 |
| 71.000 | 71,000,000 |
| 72.000 | 72,000,000 |
| 73.000 | 73,000,000 |
| 74.000 | 74,000,000 |
| 75.000 | 75,000,000 |
| 76.000 | 76,000,000 |
| 77.000 | 77,000,000 |
| 78.000 | 78,000,000 |
| 79.000 | 79,000,000 |
Gigajoules to Kilojoules Conversion
Converting Gigajoules (GJ) to Kilojoules (kJ) is a common energy and power conversion. 1 GJ equals 1,000,000 kJ. For example, 100 GJ is equal to 100,000,000 kJ.
Quick Mental Math: Gigajoules to Kilojoules
1 gigajoule is 1000000 kilojoules, so use that as the mental anchor.
Why is converting Gigajoules to Kilojoules tricky?
gigajoules to kilojoules uses an awkward ratio, so people often round too early or move the decimal the wrong way.
Quick Reference Values
1 GJ = 1,000,000 kJ. 5 GJ = 5,000,000 kJ. 10 GJ = 10,000,000 kJ. 25 GJ = 25,000,000 kJ. 50 GJ = 50,000,000 kJ. 100 GJ = 100,000,000 kJ.
What is Gigajoules?
Gigajoules (GJ) is a unit of energy and power. The gigajoule is a unit of energy equal to one billion joules (10⁹ J). One joule is the energy transferred when applying one newton of force over one meter, so a gigajoule represents a large energy quantity used in industrial and scientific applications [bipm-si-brochure]. The joule was defined in the 19th century and named after James Prescott Joule. The prefix 'giga-' was adopted internationally as part of SI prefixes in 1960 by the CGPM to denote a factor of 10⁹, formalizing the gigajoule as an SI derived unit [cgpm-resolutions]. Gigajoules are widely used in energy industries such as natural gas and electricity production, especially in Canada and Australia. They appear in energy statistics and engineering calculations per standards from BIPM and NIST [bipm-si-brochure][nist-sp-811].
What is Kilojoules?
Kilojoules (kJ) is a unit of energy and power. A kilojoule is a unit of energy equal to 1,000 joules. It quantifies work, heat, or energy transfer in the metric system, with one joule defined as one newton meter. Kilojoules are widely applied in physics, chemistry, and nutrition to measure energy content or expenditure [iso-80000]. The joule unit was named after James Prescott Joule in the late 19th century, reflecting mechanical equivalent of heat measurements. The kilojoule, as a multiple, became common with SI adoption to express larger energy quantities clearly and is standardized by ISO and BIPM [bipm-si-brochure]. Kilojoules are standard in scientific disciplines globally for energy quantification. Nutrition labels in many countries use kilojoules to indicate food energy content, while engineering and physics consistently apply kJ for energy calculations [nist-si-guide].
Common Misspellings
People often search for this conversion using these alternate spellings: giga joules, giga-joules, giga joule, gigajoule, kilojoule, kilo joules, kilojouls, kilojoules energy, kj. All of these refer to the Gigajoules to Kilojoules conversion.