Calcolatrice Energia Elettrica Gratuita
Calcola l'energia elettrica da potenza e tempo.
W
hours
Energy (kWh)
0.5000 kWh
Energy (Joules)1,800,000 J
Energy (kWh) vs Time
Formula
## Electrical Energy Electrical energy is power consumed over a period of time. ### Formula **E = P * t** In practical units: **kWh = W * hours / 1000**. In SI units: **Joules = Watts * seconds**.
Esempio Risolto
A 100 W light bulb running for 5 hours.
- 01E = P * t
- 02E = 100 * 5 = 500 Wh
- 03E = 0.5 kWh
- 04E = 100 * 5 * 3600 = 1,800,000 J
Domande Frequenti
What is a kilowatt-hour?
A kWh is the energy consumed by a 1000 W appliance running for 1 hour. It is the standard unit on electricity bills.
How much does 1 kWh cost?
Varies by location and provider. In the US, the average is roughly $0.12 to $0.30 per kWh.
How do I calculate my electricity bill?
Sum the kWh used by each appliance (power * hours / 1000), then multiply total kWh by your rate per kWh.
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