Energy Converter
Real-World Comparisons
Common Energy Usage Reference
| Activity / Device | Energy | Notes |
|---|---|---|
| Charge a smartphone | ~40 Wh (144 kJ) | ~15–20 Wh battery capacity |
| Charge a laptop | ~60 Wh (216 kJ) | Typical 60 Wh battery |
| LED bulb for 1 hour | 10 Wh (36 kJ) | 10 W |
| Boil 1 L of water | ~335 kJ (80 kcal) | From 20 °C to 100 °C |
| Slice of bread | ~290 kJ (70 kcal) | Food energy |
| A banana | ~440 kJ (105 kcal) | Medium size |
| Running 30 min | ~1,250 kJ (300 kcal) | 70 kg person |
| EV driving 1 km | ~540 kJ (0.15 kWh) | ~15 kWh/100 km |
| 1 liter of gasoline | ~34.2 MJ (9,500 kcal) | Chemical energy |
| Household daily use | ~30 kWh (108 MJ) | US average |