Wattage index

Electricity cost calculators by device wattage.

Start from the watts printed on a device label, then adjust daily hours, billing days, and electricity rate.

Pages

indexed entry points

Best use

Pick the closest page, adjust the calculator assumptions, then compare usage, rates, fixed fees, and billing days.

100 Watt Electricity Cost Calculator

Estimate how much a 100 watt device costs to run by daily hours, billing days, and electricity rate.

100 W starter

Estimate how much a 250 watt device costs to run by daily hours, billing days, and electricity rate.

250 W starter

Estimate how much a 500 watt device costs to run by daily hours, billing days, and electricity rate.

500 W starter

Estimate how much a 750 watt device costs to run by daily hours, billing days, and electricity rate.

750 W starter

Estimate how much a 1,000 watt device costs to run by daily hours, billing days, and electricity rate.

1,000 W starter

Estimate how much a 1,500 watt device costs to run by daily hours, billing days, and electricity rate.

1,500 W starter

Estimate how much a 2,000 watt device costs to run by daily hours, billing days, and electricity rate.

2,000 W starter

Estimate how much a 3,000 watt device costs to run by daily hours, billing days, and electricity rate.

3,000 W starter

Short answers for search visitors and bill-checking moments.

Multiply watts by hours used, divide by 1,000 to get kWh, then multiply by your electricity rate.

Many devices cycle on and off, use lower power in standby, or vary with settings, weather, load, and age.

Choose the page closest to the watts on the device label, then edit the wattage and hours inside the calculator.