Observed arrival · 2026-11-05
PowerUsage’s appliance running-cost calculator
A multilingual calculator estimates appliance electricity use and cost by hour, day, month, and year using your wattage, usage time, and electricity price.
- For
- Households estimating appliance electricity costs
- Worth noticing
- It distinguishes appliance energy charges from fixed bill fees and includes examples for both US and UK electricity rates.
Field notes
The page walks through converting watts to kilowatt-hours and explains how to find an appliance’s rating plate, including an example for estimating watts from amps. It flags common measurement traps: microwave cooking output can be lower than its wall draw, while a charger’s listed maximum may not reflect typical use. The calculator also separates energy charges from fixed bill fees and includes controls for thermostat cycling and time-of-use rates.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue