Calculadora de Custo de Energia Elétrica
Estime o custo mensal de energia elétrica dos seus aparelhos com base no consumo em kWh e na tarifa.
Custo Mensal
$25.20
Monthly Cost vs Days Per Month
Formula
How to Calculate Electricity Cost
Convert wattage to kilowatts, multiply by usage hours to get kWh, then multiply by your utility rate.
Formula
Daily kWh = Wattage / 1000 x Hours Per Day
Daily Cost = kWh x Rate Per kWh
Exemplo Resolvido
A 1,500W space heater running 4 hours/day at $0.14/kWh.
- 01Daily kWh = 1,500 / 1,000 x 4 = 6.0 kWh
- 02Daily cost = 6.0 x $0.14 = $0.84
- 03Monthly cost = $0.84 x 30 = $25.20
- 04Annual cost = $0.84 x 365 = $306.60
Perguntas Frequentes
How do I find my electricity rate?
Check your utility bill for the cost per kilowatt-hour (kWh). The US average is about $0.12-$0.16/kWh, but rates vary widely by state and provider.
What appliances use the most electricity?
Space heaters, air conditioners, water heaters, dryers, and ovens are typically the biggest energy users. Always check the wattage on the appliance label.
How do I reduce electricity costs?
Use LED bulbs, unplug idle devices, use a programmable thermostat, wash clothes in cold water, and replace old appliances with Energy Star rated ones.
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