Using this simple equation above, you can determine the price of a 3d printed part. This equation works best with one kilogram of filament material.

$40 x 110 / 1000 = $4.40

Filament cost represents the cost of a 1KG spool of filament, multiplied by the weight of the print in grams (110), divided by 1000 equals print cost.

A 1KG spool might be as little as $20 for budget PLA filament, if bought locally or if you already have a shipping subscription service like Amazon Prime. Brand-name filaments, non-PLA materials, and/or having to explicitly cover shipping can drive this up.

Use this to calculate how much your prints cost or how much material you can save by recycling. Some 3D “slicing” software also measures cost per print.