Free calculators for 3D printing hobbyists

Material cost, electricity, print time, and more. Fast, mobile-first, no sign-up. Built for FDM printer owners: Bambu, Prusa, Ender, and Creality.

Try the filament cost calculator Read the guides

All calculators

Filament Cost

Calculate the material cost of any 3D print from weight and spool price.

Print Time

Estimate how long a print will take based on weight and printer class.

Materials

Compare PLA, PETG, ABS, TPU, and more side by side on price, strength, and temperature.

Electricity

Figure out what each print actually costs to run based on wattage and local rates.

Failure Rate

Track your real-world failure rate and compare it to hobbyist benchmarks.

Why this site

The 3D printing community has decent calculators scattered across slicer forums, spreadsheets, and app stores, but nothing focused, fast, and mobile-friendly. filamentcalcs.com is a single place for the calculations you actually do, usually while standing next to your printer with your phone out.

Every calculator runs in your browser. Nothing is saved to a server. URLs encode your inputs, so you can bookmark a result or paste it in a Reddit reply.