🧵 3D Printing Cost Calculator
Enter the grams of filament a print uses and your spool price per kilogram to see the material cost — the fast way to price a model from your slicer's weight estimate.
🧮 Estimate Filament Cost
What is a 3D Printing Cost Calculator?
It answers the everyday maker's question — how much filament am I spending on this print? Take the gram figure your slicer reports, enter your spool's price per kilogram, and it returns the material cost. Use it to price a commission, compare materials, or decide whether a big model is worth the plastic.
Remember it covers filament alone. For a true cost, add electricity, machine wear, the odd failed print, and your time — but the filament figure is the right place to start.
❓ Frequently Asked Questions
How does the 3D printing cost calculator work?
It converts the grams of filament a print uses into a material cost using the spool price: cost = (grams ÷ 1000) × price per kilogram. Enter 200 g at $25/kg, for instance, and it returns $5. Your slicer reports the grams for a model, so this turns that straight into a cost.
Where do I find how many grams a print uses?
Your slicer — Cura, PrusaSlicer, Bambu Studio, and others — estimates the filament weight and length when you slice a model. Use the gram figure it reports. If you only have length, most spools list a grams-per-metre figure you can multiply by.
Does this include electricity and machine wear?
No — it covers filament only. A full cost also includes electricity, printer depreciation and maintenance, failed prints, support material, and any post-processing or finishing time. Treat the filament figure as a floor and add those overheads for a true per-print cost.
How much does filament typically cost?
Standard PLA and PETG spools commonly run around $18–30 per kilogram, while specialty filaments — flexibles, carbon-fibre blends, and engineering materials — cost more. Enter your actual spool price for an accurate estimate rather than a generic figure.