The Filament Price Index
Enter a spool price and weight to get the price per kilogram and per gram — the only fair way to compare filament value. Then pick the material to see how your price ranks against the live offers SpoolIndex tracks.
It depends on the material. SpoolIndex tracks live offers: typical PLA and PETG sit around $20–23/kg, while engineering materials like Nylon or carbon-fiber blends run much higher. Enter a price and material to see how it compares right now.
Price divided by spool weight in grams, times 1000. A $22.99 1kg spool is $22.99/kg; a $14 500 g spool is $28/kg, which is why bigger spools usually win on value.
A price only means something relative to the market. We compare your number against current public offers we track, so you know whether it is actually a good deal or just average.
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