Filament Cost Calculator
A free, browser-based calculator. Runs entirely in your browser — no sign up, nothing stored.
100% FreeRuns in your browserBasic
Enter Values
Enter your values and press Calculate to see results.
How to use this calculator
- Enter the grams of filament used and the spool price.
- Adjust spool weight if not 1 kg.
How it works
Cost = spool price ÷ spool weight × grams used.
Worked example
300 g from a $25 / 1 kg spool. = $7.50.
Common mistakes
- Forgetting failed prints and purge/waste filament.
- Leaving out electricity and printer wear for a true job cost.
Frequently asked questions
Does this include power and labour?
No — it's material only. Add electricity, machine time and a failure allowance when quoting jobs.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.