3DPrintCalcs
Filament Comparison Calculator — Cost per Gram
Compare cost per gram and overall value across different filament brands and spool sizes.
Filament A
Filament B
How We Calculate This
Formula
- Cost per gram = Spool price / Spool weight
- Savings = (Higher CPG - Lower CPG) / Higher CPG x 100%
A lower cost per gram means better value. Remember that quality, consistency and print reliability also matter — the cheapest filament is not always the most cost-effective.
Frequently Asked Questions
Not necessarily. Some budget brands offer excellent consistency. However, very cheap filament may have wider diameter tolerances, inconsistent colour, or impurities. Read reviews and check diameter tolerance specs.
Usually yes. 2kg and 5kg spools typically cost less per gram than 1kg spools. But only buy large spools of colours and materials you use regularly to avoid degradation over time.
Yes, include delivery charges in the spool price for accurate comparison. Free shipping offers can significantly change which brand is better value.
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Last updated: February 2026
All calculations are estimates. Always verify settings with test prints before committing to final prints.