Filament calculator

Spool weight to meters and meters to grams for 3D-print filament — check if a print fits the spool.

How many metres of filament are left on a spool, what a print will weigh, and what it costs — by material density and diameter.

Uses datasheet density per material. Runs in this browser.

How to use

  1. Pick material and diameter.
  2. Enter grams or meters.
  3. Read the other side plus cost/print estimates.

What it supports

1.75, 2.85, and 3.0 mm diameters with built-in densities for PLA, PETG, ABS, ASA, TPU, and Nylon (no custom density). Mass up to 1e7 g, length up to 1e5 m. Density is a typical value — blends differ.

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