Convert Gigajoules to Femtojoules
Convert Gigajoules (GJ) to Femtojoules (fJ) instantly and accurately.
Conversion Formula
fJ = GJ × 1.000000000e+24
About Gigajoules
A gigajoule (GJ) is 10⁹ J - the scale of fossil-fuel commodity volumes. One barrel of crude oil contains ~5.80 GJ; one metric tonne of hard coal ~29.3 GJ. Canadian energy bills express household consumption in GJ: average Canadian households use ~100-130 GJ/year. A 1 GW power plant at 33% efficiency burns ~10.9 GJ/h of fuel to generate 1 GWh = 3.6 GJ of electricity. Detonation of 1 tonne of TNT releases 4.184 GJ. 1 GJ = 10⁹ J = 277.78 kWh = 947,817 BTU = 9.4782 therms.
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.
Quick Reference Table
| Gigajoules (GJ) | Femtojoules (fJ) |
|---|---|
| 1 GJ | 1 × 1024 fJ |
| 2 GJ | 2 × 1024 fJ |
| 5 GJ | 5 × 1024 fJ |
| 10 GJ | 1 × 1025 fJ |
| 25 GJ | 2.5 × 1025 fJ |
| 50 GJ | 5 × 1025 fJ |
| 100 GJ | 1 × 1026 fJ |