How many spools do I need?

Add your prints, pick a spool size, and see what to buy, what's left over, and what it costs.

Your prints

Your slicer shows filament use after slicing, in grams or meters.

Filament

Spools and price

Extras

The buffer covers purge, supports, and failed prints. 5–10% is typical.

Shop spools on Amazon

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