The Filament Price Index
Estimate what a 3D print costs in filament. Enter the grams your slicer reports and your filament price — by kilogram or by spool — and we'll work out the cost per print and across a batch. For example, a 25 g print using $22.50/kg PLA costs about $0.56.
We multiply the grams of filament your slicer reports by your price per kilogram. If you enter a spool price and weight instead, we convert it to a per-kg rate first, then apply any purge or waste percentage.
Use what you actually paid. If you are not sure what is normal, SpoolIndex tracks live offers — typical PLA and PETG run about $20–23/kg. Pick a material in the calculator to autofill the current typical rate.
No. This estimates filament cost only, which is the largest consumable for most prints. Add electricity and maintenance separately for a full cost of ownership.
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