SANIX3D · Free 3D Printing Calculators
All your 3D printing tools in one place
Free 3D printing calculators and tools for resin and filament printing – work out real print costs, set your selling prices, convert model scales, turn filament weight into length, and analyze STL files, all from one page.
7 free tools
No sign-up
Runs in your browser
Scale Converter
Convert any miniature to the exact scale and get the resize percentage for your slicer, plus a live figure size preview.
Open tool STL File Analyzer
Drop in an STL to get volume, size, weight and full print cost, all in your browser.
Open tool FDM Print Cost Calculator
Work out the real cost of any FDM print – material, electricity and a failure margin.
Open tool Resin Print Cost Calculator
Cost per model and per full print batch for resin, including your failure rate.
Open tool Print Pricing Calculator
Set a selling price that covers cost, your labor, margin and platform fees.
Open tool Electricity Cost Calculator
Estimate what your printer costs in electricity, per print and per month.
Open tool Filament Weight to Length
Convert filament between grams and meters for PLA, PETG and ABS in both directions.
Open tool All of these 3D printing calculators are free and run entirely in your browser, with no sign-up. Whether you print in resin or filament, these 3D printing calculators cover material cost, selling price, filament length, electricity and STL analysis. Once you have your numbers, bring your prints to life with our premium STL model library. New to the difference between resin and filament printing? The 3D printing overview on Wikipedia is a helpful primer.