Costs
How much electricity does a 3D printer use?
One of the first worries before buying: "will it wreck my power bill?" Short answer: no. A home 3D printer uses less electricity than many appliances you run daily. Here are the real numbers and the formula to work out any print.
How much it draws (in watts)
A home FDM (filament) printer draws 50 to 150 W on average while printing PLA — similar to a bright bulb or a laptop charging. By material:
- PLA: ~80 W average. The most efficient: nozzle ~200°C, bed 50-60°C.
- ABS / PETG: ~120 W or more. The bed runs much hotter (90-110°C for ABS), which drives consumption.
- Large or production printers: can reach 1,000-2,000 W, but that's professional gear, not home use.
The biggest consumer by far is the heated bed — especially during warm-up. Motors, electronics and fans use very little by comparison.
The formula for any print
You need three things: your printer's wattage, the hours the part takes, and your price per kWh.
cost = (watts ÷ 1000) × hours × price_per_kWh
Real example: a 120 W printer running a 12-hour part at $0.17/kWh:
(120 ÷ 1000) × 12 h × $0.17/kWh = $0.24
Twenty-four cents for a half-day print. Run it on an off-peak (night) tariff and it's even less.
What actually costs money: the filament
On almost every print, filament costs more than electricity. A 1 kg spool of PLA runs $15-25, and that 12-hour example part might use 100-200 g — that's $2-5 of filament versus $0.24 of power. Electricity is the second cost, and a distant one.
In short
- Home printer: 50-150 W while printing. Typical annual electricity cost: $15-65.
- PLA uses less than ABS/PETG (cooler bed).
- A normal print costs cents of electricity.
- The real cost is the filament, not the power.
If consumption worried you, cross it off the list. What's worth checking when buying is the material you'll use — see our PLA vs PETG vs ABS guide and the catalog with each model's stated power draw.
FAQ
- How much electricity does a 3D printer use per month?
- Far less than people think. A desktop printer running PLA averages 50-150 W. Printing 2-3 hours a day means just a few euros/dollars a month. Manufacturer studies put the typical annual electricity cost at $15-65.
- What uses more, PLA or ABS?
- ABS, because it needs a hotter nozzle and bed (and often an enclosure). PLA prints at ~200°C with a 50-60°C bed; ABS wants ~240°C and a 90-110°C bed, which drives up consumption. To save, print PLA.
- Is the heated bed what uses the most?
- Yes. The heated bed is by far the biggest electricity consumer, especially during initial warm-up and with materials that need it very hot like ABS. The motors and electronics use little by comparison.
- How do I calculate the cost of a specific print?
- Formula: (watts ÷ 1000) × hours × price per kWh. Example: a 120 W printer running 12 hours at $0.17/kWh = (120÷1000) × 12 × 0.17 = $0.24. The filament for that part almost always costs more than the electricity.