Additive Manufacturing calculator
Filament Usage Calculator
FDM material usage is affected by part volume, infill, walls, supports, purge towers, and failed starts. This calculator converts a proven filament consumption rate and run time into grams of filament and an equivalent material cost basis.
What this calculator does
- Estimate FDM filament consumption from measured extrusion rate, print time, and filament cost.
- a print technician or estimator needs filament grams before kitting spools or pricing an FDM job
- Returns estimated grams of filament and the material cost implied by the entered unit price.
Formula used
- Filament used = filament consumption rate × planned print time
- Filament run cost = filament used × filament unit cost
Inputs explained
- Filament consumption rate: undefined
- Planned print time: undefined
- Filament unit cost: undefined
How to use the result
- Use it for FDM quotes, spool kitting, material planning, and comparing infill or support strategies.
- It does not read slicer G-code; include supports, skirts, brims, purges, and expected scrap in the rate or time assumptions.
Common questions
- Can I use filament length instead of grams? Convert length to grams using filament diameter and material density, or use slicer-reported grams directly.
- Should support material be included? Include single-material supports here; use support material cost separately for soluble or separate support stock.
- Why enter unit cost if the result unit is grams? The result also shows the implied filament run cost so the same inputs support quoting.
- What practical decision does this support? Check whether enough spool material is available and whether material cost matches the quote.
Last reviewed 2026-05-12.