Electricity Cost Calculator
Worked example result
| Energy used in the period | 15.00 kWh |
| Cost per day | $0.08 |
| Cost per month (30 days) | $2.25 |
| Cost per year (365 days) | $27.38 |
A 100 W appliance running 5 hours a day uses 15 kWh in 30 days and costs $2.25 a month at $0.15/kWh.
kWh = Watts ÷ 1000 × hours; Cost = kWh × price per kWh · Powered by CalcHub — Electricity Cost Calculator