Quickly analyze STL and OBJ files directly in your browser. Calculate model volume, dimensions, bounding-box size, and estimated material weight for PLA, PETG, ABS, and resin. Check whether a model fits your printer bed and estimate material needs before slicing. Files are processed privately on your device—no uploads or signup required. Send weight estimates directly to our 3D Print Quote tool for fast cost calculations.

I built STL Volume Calculator because I kept wanting a quick answer to a simple question: how much material will this 3D model actually use? Upload an STL or OBJ and the tool calculates model volume, dimensions and estimated material weight for PLA, PETG, ABS and resin—directly in your browser. It’s useful for quickly checking whether a model will fit your printer bed, estimating filament requirements, and getting a rough idea of print cost before opening a slicer. The tool is private and runs on-device, with no signup required. You can also send the estimated weight directly into our 3D print quote tool. I’d love feedback from 3D-printing makers on what calculation we should add next.

STL Volume Calculator

Know Your STL Volume, Bed Fit & Filament Weight

Know Your STL Volume, Bed Fit & Filament Weight