Convert Megatons of TNT to Gigawatt-Hours
Convert Megatons of TNT (Mt(TNT)) to Gigawatt-Hours (GWh) instantly and accurately.
Conversion Formula
GWh = Mt(TNT) × 1162.222222
About Megatons of TNT
A megaton of TNT (Mt(TNT)) = 10⁶ tons of TNT = exactly 4.184 PJ. The Soviet Tsar Bomba (1961) yielded ~50 Mt - the largest human-made explosion ever, with a fireball 8 km in diameter. Castle Bravo (1954) yielded ~15 Mt, 2.5× its 6 Mt design yield. Modern thermonuclear warheads typically range from 0.1-1.2 Mt. The 2011 Tōhoku earthquake released ~500 Mt in seismic energy. The Krakatoa 1883 eruption released ~200 Mt; Tambora 1815 ~33,000 Mt. 1 Mt(TNT) = 4.184 PJ = 1,162,800 MWh.
About Gigawatt-Hours
A gigawatt-hour (GWh) is the energy from 1 GW for one hour - exactly 3.6 TJ. National electricity generation is reported in annual GWh: Ireland ~32,000 GWh/year; France ~496,000 GWh/year. The Hornsea One offshore wind farm (1.12 GW) generates ~4,000 GWh/year. The Bath County Pumped Storage (3 GW, USA) stores ~24 GWh. World total battery storage capacity reached ~1,600 GWh by end-2022. Energy of 1 megaton TNT ≈ 1.162 GWh. 1 GWh = 3.6 TJ = 1,000 MWh = 3.412 × 10⁹ BTU.
Quick Reference Table
| Megatons of TNT (Mt(TNT)) | Gigawatt-Hours (GWh) |
|---|---|
| 1 Mt(TNT) | 1162.22 GWh |
| 2 Mt(TNT) | 2324.44 GWh |
| 5 Mt(TNT) | 5811.11 GWh |
| 10 Mt(TNT) | 11622.2 GWh |
| 25 Mt(TNT) | 29055.6 GWh |
| 50 Mt(TNT) | 58111.1 GWh |
| 100 Mt(TNT) | 116222 GWh |