Practical calculators, converters, and readable reference pages.
Everyday electricity cost help
Calculate now if you know the appliance, runtime, and rate. If one of those numbers is uncertain, fix that input first and return with a clearer estimate.
Start here
Use this first when you want a usage-cost estimate for one appliance and already have wattage, daily runtime, and a rate per kWh.
Home energy
What it shows
Estimate the daily, monthly, and yearly electricity cost of an appliance from its wattage, usage hours, and electricity rate.
Best for
Comparing the running cost of heaters, fans, computers, kitchen appliances, and other devices before you buy or leave them on every day.
Input help
Use this section only when a missing or uncertain input is blocking the estimate. Pick the guide for that number, then return to a calculator with the assumption you decided to use.
Site information
The site includes privacy, disclaimer, and contact pages because calculators are more useful when assumptions, correction options, and estimate limits are easy to check.