Know what your
watts are worth.
Put a price on the power you use. Free calculators and straightforward guides for a more informed home.
30 days of a little more clarity.
One less hour each day would save 5.40 over this period.
Energy charges only. Fixed fees, taxes and tiered or time-of-use pricing are not included. Annual projections assume the same use every day.
Start with what’s plugged in.
One practical question.
A useful answer.
Electricity cost
Estimate the cost of running any appliance from watts, hours, and your electricity rate.
↗02 / CALCULATORSpace heater running cost
Find the cost of a heating session and compare different hours of use.
↗03 / CALCULATORDehumidifier running cost
Estimate electricity costs using measured power and actual compressor runtime.
↗04 / CALCULATORLED replacement savings
Compare the electricity used by an existing bulb and its LED replacement.
↗Work through your next question
- Time-of-use electricity cost calculator
Split peak and off-peak energy use, compare a flat rate, and see what shifting a load could save.
- LED bulb payback calculator
Compare bulb purchase costs and electricity savings, including multi-bulb replacement and simple payback.
- How to measure appliance electricity use
Use a repeatable energy log to turn measured kWh into running costs, with a downloadable worksheet and worked example.