Convert Gigajoules to Microjoules
Convert Gigajoules (GJ) to Microjoules (µJ) instantly and accurately.
Conversion Formula
µJ = GJ × 1000000000000000
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 Microjoules
A microjoule (µJ) is 10⁻⁶ J - the scale of precision laser ablation, ESD damage events, and individual LIDAR pulses. LASIK eye surgery delivers 0.5-2 µJ per pulse at 193 nm, ablating ~0.25 µm of corneal tissue per pulse. ESD events that destroy IC gates correspond to 1-1,000 µJ; the Human Body Model test discharges ~500 µJ at 2 kV. Q-switched microchip laser pulses for rangefinding are 1-100 µJ. The kinetic energy of a 1 mg grain of sand falling 10 cm is mgh ≈ 0.98 µJ. 1 µJ = 10⁻⁶ J.
Quick Reference Table
| Gigajoules (GJ) | Microjoules (µJ) |
|---|---|
| 1 GJ | 1 × 1015 µJ |
| 2 GJ | 2 × 1015 µJ |
| 5 GJ | 5 × 1015 µJ |
| 10 GJ | 1 × 1016 µJ |
| 25 GJ | 2.5 × 1016 µJ |
| 50 GJ | 5 × 1016 µJ |
| 100 GJ | 1 × 1017 µJ |