The Filament Price Index
PETG offers a useful middle ground for 3D printing: tougher and more weather-resistant than PLA, easier to print than ABS. This page tracks every PETG spool under $20 across all the retailers we monitor, ranked purely by price. Because PETG spools are frequently sold in smaller weights such as 500g or 750g at a lower headline price, we calculate price per kg so a partial spool can be compared fairly against a full 1kg spool.
Ready-to-buy mode hides low-buyability listings (quote-only, stale, or low-trust merchant signals) by default.
PETG generally costs more to produce than PLA, so even budget brands rarely price a full 1kg spool under $20. When spools do appear here, they are often smaller sizes (500g-750g) or limited-time promotions, so check the spool weight before buying.
Most PETG falls in the $20-30 per kg range from established brands, with budget options sometimes reaching $16-20 per kg. Below roughly $16 per kg, check reviews carefully, since PETG quality and moisture-resistance vary more between budget brands than PLA does.
It depends on the price per kg, not the sticker price. A 500g spool at $12 works out to $24 per kg, which may be a worse deal than a $20 1kg spool. Always compare the per-kg figure shown on this page rather than the listed price alone.
PETG usually costs a few dollars more per kg than PLA, but because it is tougher and more durable, parts printed in PETG often do not need to be reprinted due to breakage, which can offset the higher material cost for functional or outdoor parts.
If this list looks short, it is because PETG rarely drops below $20 even for partial spools; brand-name PETG typically starts around $20-25 per kg. Check back after restocks or during seasonal sales, when PETG pricing tends to dip. In the meantime, our best-value PLA and PETG pages show the lowest price-per-kg options regardless of the total spool price.