How to Calculate Filament Cost per Print

Filament cost formula:

$material_cost = (grams / 1000) * filament_cost_per_kg$

If your part uses 84g and your spool costs $24/kg:

$(84 / 1000) * 24 = 2.016$

Material looks simple, but combined costs determine profitability. Add power, wear, failures, fees, and labor for your final sale price.