We track 264 PLA Pro filament listings from 15 brands, with prices checked every 4 hours and normalized to a true cost per kilogram. Below are the lowest-priced 1kg and bulk PLA Pro spools right now, the market average per kg, and every listing sorted by price per kg.
The single cheapest 1kg spool and the cheapest bulk spool (2kg+) by price per kg right now. See all 264 listings ↓
PLA (polylactic acid) is the most widely used 3D printing filament. It prints at low temperatures, barely warps, and holds fine detail, so it runs on almost any FDM printer without an enclosure. That ease of use makes it the default for prototypes, miniatures, and indoor display parts. Its trade-offs are heat and impact resistance: PLA softens in a hot car or direct sun, so it is a poor fit for functional outdoor or high-stress parts.
Best for everyday parts that need a little more toughness than standard PLA, with the same heat limits.
Based on Bambu Lab and Prusa guidance. See the nozzle types guide for brass vs hardened steel.
We compare PLA Pro filament from 15 brands. Read the PLA variants guide → Filament Cost Calculator →
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Everything to know about PLA: properties, print settings, brand differences, and when PLA is the right material.
What high temperature PLA is, how annealing raises its heat resistance, and how to print and anneal it.
How lightweight foaming PLA works, how temperature and flow set its weight, and when to use it.
PLA vs PETG compared: print settings, strength, heat resistance, outdoor use and live price per kg for both, so you can pick the right filament for the job.
PLA vs ABS compared: print settings, heat resistance, toughness, fumes and live price per kg for both, so you can pick the right filament.
PLA vs ASA compared: sunlight and heat resistance, printing difficulty, fumes and live price per kg, so you can pick the right filament.
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