Convert Kilotons of TNT to Watt-Hours
Convert Kilotons of TNT (kt(TNT)) to Watt-Hours (Wh) instantly and accurately.
Conversion Formula
Wh = kt(TNT) × 1162222222
About Kilotons of TNT
A kiloton of TNT (kt(TNT)) = 10³ tons of TNT = exactly 4.184 TJ. It is the standard unit for sub-megaton nuclear weapon yields. Hiroshima's Little Boy: ~12-18 kt; Nagasaki's Fat Man: ~19-23 kt. The W88 warhead (Trident II) is ~475 kt; the W76 is ~100 kt. The Beirut port explosion (2020): estimated 0.5-1.1 kt. A magnitude 5.0 earthquake releases ~0.5-2 kt of seismic energy. A kiloton blast creates a fireball ~90-100 m radius and a lethal thermal radius of ~1-2 km. 1 kt(TNT) = 4.184 TJ = 1,162.8 MWh.
About Watt-Hours
A watt-hour (Wh) is the energy delivered by 1 watt for one hour - exactly 3,600 J. It is the practical unit for small-scale electrical energy: a 10,000 mAh 5 V power bank stores 50 Wh; a laptop battery holds 50-90 Wh; a smartphone battery holds 10-15 Wh; an AA alkaline cell stores ~3 Wh. LED lamps labelled 9 W save 51 Wh/h over a 60 W incandescent. IATA dangerous-goods rules use Wh as the threshold for lithium batteries in aircraft: cells >20 Wh and batteries >100 Wh need special approval. 1 Wh = 3,600 J = 3.412 BTU.
Quick Reference Table
| Kilotons of TNT (kt(TNT)) | Watt-Hours (Wh) |
|---|---|
| 1 kt(TNT) | 1.162 × 109 Wh |
| 2 kt(TNT) | 2.324 × 109 Wh |
| 5 kt(TNT) | 5.811 × 109 Wh |
| 10 kt(TNT) | 1.162 × 1010 Wh |
| 25 kt(TNT) | 2.906 × 1010 Wh |
| 50 kt(TNT) | 5.811 × 1010 Wh |
| 100 kt(TNT) | 1.162 × 1011 Wh |