3D Print Electricity Cost Calculator

Energy in kWh equals watts divided by 1000, times hours. Cost equals that energy times your price per kWh. For example 150 W for 10 h is 1.5 kWh, a raw $0.225 that rounds to $0.23 for display.

Use the average draw over the whole print, not the peak heater rating on the label. A small FDM printer often averages roughly 70 to 150 W once the bed and hotend hold temperature, well below the spike when heating starts.

A plug-in energy meter between the printer and the wall reads real watts and running kWh. Let it record a full print, then use its average watts here for the most accurate estimate.

The dollar cost rounds to two decimals because that is how money is shown. The kWh value keeps four decimals so you can recompute the exact raw cost or compare short prints that differ by fractions of a cent.

Yes. The heated bed is usually the largest continuous load. Printing ABS or PETG at higher bed temperatures raises the average watts and the total energy, so those jobs cost more per hour than a cool PLA print.

It is on your electricity bill, often labeled the energy charge or supply rate per kWh. Rates vary by region, plan, and sometimes time of day, so use your own bill rather than a national average.

The power field accepts up to 1000 W, print time up to 200 hours, and the rate up to $1 per kWh, which covers almost every desktop printer and tariff. All three values must be greater than zero.

No. This tool covers electricity only. To add material and other costs, pair it with a filament, resin, or full print cost calculator so you see the complete price per part.

No. The math runs in your browser and none of your inputs leave your device, so you can experiment with rates and print times privately.