Convert Megajoules to Terajoules
Convert Megajoules (MJ) to Terajoules (TJ) instantly and accurately.
Conversion Formula
TJ = MJ × 1.000000000e-6
About Megajoules
A megajoule (MJ) is 10⁶ J - the scale of fuel combustion in vehicles and kinetic energy of road traffic. Energy content: 1 L diesel ~34.9 MJ; 1 L petrol ~32.2 MJ. A 1,500 kg car at 100 km/h has KE = ½ × 1,500 × 27.78² ≈ 0.579 MJ; at 200 km/h it carries 2.31 MJ - explaining crash severity's quadratic speed dependence. A 60 kWh EV battery stores 60 × 3.6 = 216 MJ. Detonation of 1 kg TNT releases 4.184 MJ. Adults at rest metabolise ~6-9 MJ/day. 1 MJ = 10⁶ J = 239.0 kcal = 0.27778 kWh = 947.8 BTU.
About Terajoules
A terajoule (TJ) is 10¹² J - the scale of nuclear yields in the kiloton range and large industrial accidents. One kiloton of TNT = 4.184 TJ; the Hiroshima bomb (15 kt) released ~62.8 TJ. The Halifax Explosion (1917) released ~3 TJ. A 500 MW coal plant consumes ~51.4 TJ/h of thermal input. Daily primary energy of Denmark is ~250-300 TJ; the UK ~3,800 TJ/day. A 1 GW nuclear reactor at 90% capacity factor generates ~77.7 TJ/day. 1 TJ = 10¹² J = 277,778 kWh = 277.78 MWh = 23.88 ktoe.
Quick Reference Table
| Megajoules (MJ) | Terajoules (TJ) |
|---|---|
| 1 MJ | 1 × 10-6 TJ |
| 2 MJ | 2 × 10-6 TJ |
| 5 MJ | 5 × 10-6 TJ |
| 10 MJ | 1 × 10-5 TJ |
| 25 MJ | 2.5 × 10-5 TJ |
| 50 MJ | 5 × 10-5 TJ |
| 100 MJ | 1 × 10-4 TJ |