Science Energy

Electricity Usage and Cost Simulator

A different appliance. A few hours less.
Change the inputs and see where your electricity goes.

Shape your usage

Move a slider or type an exact value. Results update instantly.

Appliance name

Estimate period

Appliance wattage (W)

Daily usage (hours)

Electricity rate / kWh

Currency

Monthly estimates use 30 days; yearly estimates use 365 days. Currency labels do not convert the electricity rate.

Your electricity, in real time

Live estimate

Cost for selected period —

Energy for selected period —

Daily electricity cost — Energy per day × rate per kWh

Daily energy use — Watts × daily hours ÷ 1,000

Daily usage time

Cost across billing periods

Each bar uses the same daily usage and rate. Monthly = 30 days; yearly = 365 days.

Inputs and calculation details

Item	Value	Note

Compare scenarios

Keep up to four scenarios. Each shows its own period and currency; values are not currency conversions.

Keep this experiment

Open Funify Notes

Save a result image, both graphs, inputs, and compared scenarios in this browser. Only saved when you press the button.

Model and assumptions

Energy (kWh) = power (W) × hours ÷ 1,000. Cost = energy × rate per kWh. Assumes constant wattage and one blended rate; appliance cycling, tiered tariffs, taxes, and fixed fees can change actual bills.