Electricity Cost Calculator
Work out what an appliance costs to run per day, month and year from its watts, hours of use and your price per kWh.
Cost per year
43.80
- Cost per month
- 3.65
- Cost per day of use
- 0.12
- Energy per year
- 292 kWh
- Energy per day of use
- 0.8 kWh
Show the work
Energy per day of use
kWh = watts × devices × hours ÷ 1,000
200 × 1 × 4 ÷ 1,000 = 0.8 kWh
Energy per year
kWh per year = kWh per day × days used
0.8 × 365 = 292 kWh
Cost per year
cost = kWh per year × price per kWh
292 × 0.15 = 43.80
How it works
kWh per day = watts × hours per day ÷ 1000; yearly cost = kWh per day × days used per year × price per kWh
Questions
- How does the electricity cost calculator work?
- kWh per day = watts × hours per day ÷ 1000; yearly cost = kWh per day × days used per year × price per kWh.
- What do I need to enter?
- Power, How many devices, Hours used per day, Days used per year, Price per kWh. Optional fields can be left blank.
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