Filament Mass Calculator

Estimate how much filament is left based on spool diameter, turns, and material density.

Spool diameter (mm) Filament thickness (mm) Number of turns Material preset Filament density (g/cm³)

grams of filament

All inputs must be greater than 0.

length = π · D · turns; volume = length · area; mass = volume · density

Model: single-layer coil using the average spool diameter.