Tool
Filament Price & Length Calculator
Price per gram, price per kg, and remaining meters — with a currency symbol display that matches your shop.
Price Calculator
Display only (no exchange rates).
Price per Gram
$0.020
Price per Kg
$19.99
Filament Length Calculator (Weight → Meters)
Remaining Length
99.5 m
How to calculate filament density?
Density is usually provided by the manufacturer. Common values are PLA (1.24g/cm³), PETG (1.27g/cm³), and ABS (1.04g/cm³). Knowing the density allows you to convert weight to length accurately, which is how slicers estimate print usage.
FAQ: Filament cost per gram & per meter
- Cost per gram: (Spool price / spool weight in grams). Enter price + kg above to see it instantly.
- Cost per meter: Convert remaining grams to length (we use diameter + density) to know how many meters are left.
- PLA vs PETG cost: PLA is usually $15–22/kg, PETG $16–25/kg. Check our PLA vs PETG guide for current pricing.
- Do I have enough filament? Enter remaining grams; the length calculator tells you if you have enough meters for a job before you start a long print.