Filament Spool Length Calculator

Calculate how many meters of filament are on a spool by weight and material density.

Spool Settings

Material Preset

Spool Net Weight (g)

Filament Diameter (mm)

Material Density (g/cm³)

Spool Length

335.3 m

Total filament length on spool

1100.1 ft

Length (feet)

806.5 cm³

Volume

—

Cost per Meter

Cost per Meter (Optional)

Spool Price ($)

This tool calculates how many meters of filament are on a spool based on its weight, filament diameter, and material density.

Length = Weight ÷ (Density × π × (Diameter/2)²)

This converts the mass of filament into length by dividing by the linear density (mass per unit length).

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