Electricity cost calculator
Add each device, enter your own electricity price, and see what it costs over a period.
Formula: watts x hours per day / 1,000 x price per kWh x days.
Heaters and pumps with variable load use less than their rated watts. Estimates are only as good as the hours and watts you enter. Check your own tariff on your bill.
How this is calculated
For each device: watts x hours per day / 1,000 gives kWh per day. Multiply by the number of days, then by your price per kWh.
Heaters and pumps with variable load use less than their rated watts, so treat the result as an estimate. Check your own tariff on your bill.