Electricity Bill Calculator

This estimates what an appliance costs to run: watts multiplied by hours gives watt-hours, divided by a thousand gives units in kWh, and multiplying by your tariff gives a cost, reported daily and monthly. Enter the appliance's wattage, how long it runs each day and your rate per unit. It is genuinely useful for settling questions people argue about — whether an old fridge is worth replacing, what an air conditioner adds to a summer bill, whether leaving a device on standby matters. Find the wattage on the appliance's rating label rather than guessing. Two things make this an estimate rather than a bill. Appliances that cycle, such as fridges and air conditioners, draw their rated power only part of the time, so a straight calculation overstates them. And most tariffs are tiered with fixed charges, duties and taxes on top of the unit rate.