Power costing · reviewed 19 June 2026
How much electricity does a 3D print cost?
Convert average watts into kilowatt-hours, then multiply by the tariff you actually pay. Printer wattage alone is not an energy bill.
The calculation
energy (kWh) = average watts ÷ 1,000 × print hourselectricity cost = energy (kWh) × tariff per kWhAt the calculator’s illustrative defaults, 110 W for 5.5 hours uses 0.605 kWh. At USD 0.18/kWh, the electricity cost is about USD 0.11. These are assumptions, not a measured printer profile or a universal tariff.
Use average draw, not the label’s maximum
Power changes while heaters warm up, the bed cycles and motors move. The most useful estimate comes from a wall-power meter across representative complete jobs. Record both kWh and elapsed hours, then calculate average watts if needed.
What else uses power?
| Equipment | When to include it | Allocation method |
|---|---|---|
| Printer | Every job | Measured job kWh |
| Resin wash/cure | Resin post-processing | Measured cycle kWh divided by units |
| Dryer | Material conditioning for the job or batch | Cycle kWh divided by material/jobs |
| Ventilation | When operated for production | Measured runtime allocation |
| Computer/lighting | If materially incremental | Production-time allocation |
Do not optimize the smallest cost first
Electricity can be smaller than labour, failed prints, marketplace fees or shipping. Measure it, include it, then prioritize the cost that actually changes profit. A USD 0.10 power saving does little if poor preparation causes a USD 10 failed job.
Disclosure: examples are arithmetic illustrations. Tariffs, taxes and power profiles differ by location, printer and job. Use a suitable meter and follow its manufacturer instructions.