Convert Kilowatt-Hours to Exajoules
Convert Kilowatt-Hours (kWh) to Exajoules (EJ) instantly and accurately.
Conversion Formula
EJ = kWh × 3.600000000e-12
About Kilowatt-Hours
A kilowatt-hour (kWh) is the energy consumed by 1 kW for one hour - exactly 3,600,000 J = 3.6 MJ. All domestic electricity meters bill in kWh. Appliance benchmarks: fridge 180-250 kWh/year; washing machine 0.5-2.0 kWh/cycle; air conditioner 1-3 kWh/h. EVs consume 13-25 kWh/100 km; the Lucid Air achieves ~15.9 kWh/100 km (WLTP). Producing 1 tonne of primary aluminium requires ~13,000-15,000 kWh. Global electricity generation is ~29,165 TWh ≈ 2.9 × 10¹³ kWh/year. 1 kWh = 3.6 MJ = 3,412.1 BTU = 859.85 kcal.
About Exajoules
An exajoule (EJ) is 10¹⁸ J - the scale of global energy consumption. World primary energy supply in 2022 was ~580-610 EJ: coal ~160 EJ; oil ~190 EJ; gas ~145 EJ; nuclear ~26 EJ; wind ~8 EJ; solar PV ~8 EJ. Global electricity generation of ~29,000 TWh = 104 EJ. Solar energy incident on Earth's atmosphere is ~5.5 × 10⁶ EJ/year - approximately 9,000× total human demand. Annual fossil fuel combustion releases ~490 EJ/year, producing ~36.8 Gt CO₂. 1 EJ = 10¹⁸ J = 277.78 TWh = 238.85 Mtoe.
Quick Reference Table
| Kilowatt-Hours (kWh) | Exajoules (EJ) |
|---|---|
| 1 kWh | 3.6 × 10-12 EJ |
| 2 kWh | 7.2 × 10-12 EJ |
| 5 kWh | 1.8 × 10-11 EJ |
| 10 kWh | 3.6 × 10-11 EJ |
| 25 kWh | 9 × 10-11 EJ |
| 50 kWh | 1.8 × 10-10 EJ |
| 100 kWh | 3.6 × 10-10 EJ |