Calculadora de energia elétrica
Energia consumida em kWh a partir da potência e das horas.
Tabela de amortização
| # | Pagamento | Principal | Juros | Saldo |
|---|---|---|---|---|
Mostrando os primeiros 12 de meses.
Crescimento ao longo do tempo
| Ano | Investido | Valor |
|---|---|---|
Introdução
Electric Energy Calculator — Energy consumed in kWh from power and hours. Enter Power (W), Hours to get an instant, accurate result.
Fórmula
Electric energy consumption is calculated as E = (P × t) / 1000, where P is power in watts and t is time in hours, giving energy in kilowatt-hours (kWh).
Passo a passo
- Enter the Power (W).
- Enter the Hours.
- Click Calculate to see your result instantly.
Exemplo do mundo real
Example: With Power (W) = 100, Hours = 10, the Electric Energy Calculator gives Energy Kwh: 1.
Perguntas Frequentes
What is a kilowatt-hour?
A kilowatt-hour (kWh) is the energy consumed by a 1,000-watt device running for one hour. It is the standard unit used by utility companies to bill electricity usage.
How do I estimate my appliance's energy cost?
Multiply the appliance's power rating (in watts) by the hours used per day, divide by 1,000 to get kWh, then multiply by your utility's price per kWh.
What units does this calculator use?
Enter power in watts (W) and time in hours to get energy consumption in kilowatt-hours (kWh).
What inputs does the Electric Energy Calculator need?
You'll need to provide: Power (W), Hours. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Electric Energy Calculator?
The Electric Energy Calculator applies the formula exactly as calculated — Electric energy consumption is calculated as E = (P × t) / 1000, where P is power in watts and t is time in hours, giving energy in kilowatt-hours (kWh). — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Electric Energy Calculator free to use?
Yes, the Electric Energy Calculator is completely free, requires no signup, and runs instantly in your browser.
Sobre a Calculadora de energia elétrica
The Electric Energy Calculator uses a real, verifiable formula — Electric energy consumption is calculated as E = (P × t) / 1000, where P is power in watts and t is time in hours, giving energy in kilowatt-hours (kWh). — so results are accurate every time, not an approximation.