Convert Femtojoules to Terajoules
Convert Femtojoules (fJ) to Terajoules (TJ) instantly and accurately.
Conversion Formula
TJ = fJ × 1.000000000e-27
About Femtojoules
A femtojoule (fJ) is 10⁻¹⁵ J - the scale of gamma-ray photons, molecular motor work, and state-of-the-art digital logic. The electron rest-mass energy is 81.87 fJ; a 100 keV X-ray photon carries 16.02 fJ. A single myosin II motor protein power stroke dissipates ~5-40 fJ. ATP hydrolysis under cellular conditions yields ~80-100 fJ of free energy. Advanced 3 nm CMOS gates switch at ~0.1-1 fJ per operation. Ultrafast fiber laser oscillators produce pulses of 0.1-10 fJ before amplification. 1 fJ = 10⁻¹⁵ J = 6.242 keV.
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
| Femtojoules (fJ) | Terajoules (TJ) |
|---|---|
| 1 fJ | 1 × 10-27 TJ |
| 2 fJ | 2 × 10-27 TJ |
| 5 fJ | 5 × 10-27 TJ |
| 10 fJ | 1 × 10-26 TJ |
| 25 fJ | 2.5 × 10-26 TJ |
| 50 fJ | 5 × 10-26 TJ |
| 100 fJ | 1 × 10-25 TJ |