Kilotons of TNT to Gigajoules (ktTNT → GJ)
Formula
1 ktTNT = 4184 GJConversion Table
| ktTNT | GJ |
|---|---|
| 0 | 0 |
| 1.0000 | 4,184.0 |
| 2.0000 | 8,368.0 |
| 3.0000 | 12,552 |
| 4.0000 | 16,736 |
| 5.0000 | 20,920 |
| 6.0000 | 25,104 |
| 7.0000 | 29,288 |
| 8.0000 | 33,472 |
| 9.0000 | 37,656 |
| 10.000 | 41,840 |
| 11.000 | 46,024 |
| 12.000 | 50,208 |
| 13.000 | 54,392 |
| 14.000 | 58,576 |
| 15.000 | 62,760 |
| 16.000 | 66,944 |
| 17.000 | 71,128 |
| 18.000 | 75,312 |
| 19.000 | 79,496 |
| ktTNT | GJ |
|---|---|
| 20.000 | 83,680 |
| 21.000 | 87,864 |
| 22.000 | 92,048 |
| 23.000 | 96,232 |
| 24.000 | 100,420 |
| 25.000 | 104,600 |
| 26.000 | 108,780 |
| 27.000 | 112,970 |
| 28.000 | 117,150 |
| 29.000 | 121,340 |
| 30.000 | 125,520 |
| 31.000 | 129,700 |
| 32.000 | 133,890 |
| 33.000 | 138,070 |
| 34.000 | 142,260 |
| 35.000 | 146,440 |
| 36.000 | 150,620 |
| 37.000 | 154,810 |
| 38.000 | 158,990 |
| 39.000 | 163,180 |
| ktTNT | GJ |
|---|---|
| 40.000 | 167,360 |
| 41.000 | 171,540 |
| 42.000 | 175,730 |
| 43.000 | 179,910 |
| 44.000 | 184,100 |
| 45.000 | 188,280 |
| 46.000 | 192,460 |
| 47.000 | 196,650 |
| 48.000 | 200,830 |
| 49.000 | 205,020 |
| 50.000 | 209,200 |
| 51.000 | 213,380 |
| 52.000 | 217,570 |
| 53.000 | 221,750 |
| 54.000 | 225,940 |
| 55.000 | 230,120 |
| 56.000 | 234,300 |
| 57.000 | 238,490 |
| 58.000 | 242,670 |
| 59.000 | 246,860 |
| ktTNT | GJ |
|---|---|
| 60.000 | 251,040 |
| 61.000 | 255,220 |
| 62.000 | 259,410 |
| 63.000 | 263,590 |
| 64.000 | 267,780 |
| 65.000 | 271,960 |
| 66.000 | 276,140 |
| 67.000 | 280,330 |
| 68.000 | 284,510 |
| 69.000 | 288,700 |
| 70.000 | 292,880 |
| 71.000 | 297,060 |
| 72.000 | 301,250 |
| 73.000 | 305,430 |
| 74.000 | 309,620 |
| 75.000 | 313,800 |
| 76.000 | 317,980 |
| 77.000 | 322,170 |
| 78.000 | 326,350 |
| 79.000 | 330,540 |
Kilotons of TNT to Gigajoules Conversion
Converting Kilotons of TNT (ktTNT) to Gigajoules (GJ) is a common energy and power conversion. 1 ktTNT equals 4,184 GJ. For example, 100 ktTNT is equal to 418,400 GJ.
Quick Mental Math: Kilotons of TNT to Gigajoules
Divide kilotons of tnt by 1.0e+6 for gigajoules; descending tiers require division.
Why is converting Kilotons of TNT to Gigajoules tricky?
Magnitude or direction confusion between kilotons-of-tnt and gigajoules is the primary error source.
Quick Reference Values
1 ktTNT = 4,184 GJ. 5 ktTNT = 20,920 GJ. 10 ktTNT = 41,840 GJ. 25 ktTNT = 104,600 GJ. 50 ktTNT = 209,200 GJ. 100 ktTNT = 418,400 GJ.
What is Kilotons of TNT?
Kilotons of TNT (ktTNT) is a unit of energy and power. A kiloton of TNT is a unit of energy equivalent to 1,000 tons of TNT, precisely defined as 4.184 × 10^12 joules. This unit quantifies explosive energy, originally based on the energy released by the detonation of TNT. It remains a standard measure in nuclear weapon yield and large explosive events [nist-cuu]. The kiloton of TNT was adopted during the mid-20th century to compare explosive yields, especially after the development of nuclear weapons in the 1940s. The convention was formalized to allow consistent communication of energy magnitudes in military and scientific contexts [nist-cuu]. Kilotons of TNT are universally used in defense, nuclear physics, and disaster impact assessments. Agencies like the US Department of Energy and the United Nations refer to this unit when describing bomb yields or explosion magnitudes [nist-cuu].
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].
Common Misspellings
People often search for this conversion using these alternate spellings: kiloton TNT, kilo tons of TNT, kilotons TNT, kilo tons TNT, giga joules, giga-joules, giga joule, gigajoule. All of these refer to the Kilotons of TNT to Gigajoules conversion.