Pick an appliance, set how long you use it, and drop in your electricity rate. kWh Lab shows the cost per hour, day, month, and year — and what you could do to shrink it.
Not sure of the wattage? Measure an appliance's real draw with a plug-in power meter or an energy-monitoring smart plug.
For fridges, freezers and AC, “use per day” means compressor run-time, not hours plugged in — the presets already account for this.
Pick a state for its approximate average, or type the exact rate from your bill for a precise result.
Adjust the inputs above to see tailored savings ideas.
Some links may be affiliate or partner links — kWh Lab may earn a commission. Suggestions are based on the appliance, not payout.
