3D Print Infill Weight Calculator

About this calculator

This calculator estimates filament weight as: mass = model volume × (shell fraction + (1 − shell fraction) × infill percentage) × material density — the shell fraction accounts for the solid outer walls and top/bottom layers that print at 100% regardless of the chosen infill setting, while the remaining internal volume is filled only to the infill percentage you specify.

Hobbyist and professional FDM (fused deposition modeling) 3D-printer users use it to estimate how much filament a print will consume — and its approximate cost — before starting a long print job, plugging in the density of their material (around 1.24 g/cm³ for PLA, 1.27 g/cm³ for PETG, 1.04 g/cm³ for ABS) since slicer software estimates can vary between programs and profiles.