Electrical Energy (E = Pt)
Enter your known values, leave one input blank, and solves for the missing one. Try different units for next level excitement!
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Energy is power sustained over time — the relation behind every electricity bill. Utilities meter in kilowatt-hours because joules are inconveniently small: 1 kWh is 1000 W for 3600 s, exactly 3.6 × 10⁶ J. A 2000 W heater running for 3 hours uses 6 kWh, the same energy as a 100 W bulb burning for 60 hours.
Electrical Energy (E = Pt)
Where
- = Energy
- = Power
- = Time
Missing one of these? Work it out first, then come back