About filamentcalcs.com
filamentcalcs.com is an independent utility site built to organize common 3D printing cost, filament, electricity, and slicer calculations in one place. Formulas are documented on the methodology page, source data is linked, and corrections can be reported via the contact page.
Every calculation runs in your browser. No account is required. URLs include your inputs so you can bookmark a result or share it in a Reddit thread or Discord channel.
How the site is operated
filamentcalcs.com is operated as an independent editorial reference. It is not affiliated with any printer or filament manufacturer, slicer team, or distributor. Some pages include Amazon affiliate links, but the site does not accept manufacturer sponsorships or paid product reviews.
This is a research-based reference. We do not operate a print farm or claim to have personally tested the printers in our guides. Manufacturer specifications and slicer documentation are linked where used. Presets are starting assumptions, and your measurements are the better input for a particular printer or job.
Reader reports help identify corrections. To report a wrong default or a stale price is the contact page.
Why this site exists
The 3D printing community is generous with information, but the information is scattered. Reddit threads, YouTube videos, slicer forum posts, manufacturer wikis, and individual blog posts all carry pieces of the same answers. The math behind print cost, electricity, failure rate, and AMS purge waste is well known to experienced printers but spread across dozens of sources.
filamentcalcs.com is an attempt to put the practical math in one place, with the calculations actually exposed as tools you can use in 30 seconds, plus longer-form context for when you want to understand what the numbers mean. The audience is hobbyists with one or two printers, not commercial farms.
What the calculators include
The tools cover material cost, electricity, printer wear, failed attempts, hands-on time and multi-color material use.
Each tool explains its assumptions and limitations. The methodology page documents every formula and the source data it draws on.
Sources and method
The methodology page links supporting references, including Prusa documentation, Bambu Studio source code and material datasheets. Reference prices, rates and material properties can vary. Use your bill, purchase price or manufacturer's specification when available.
Where estimates have wide error bars (print time being the main example), the calculator and its accompanying explainer say so explicitly. The intent is to give you a number good enough to plan around, not to replace your slicer's authoritative per-file estimate.
How the site is maintained
Calculator changes are checked with worked examples and automated formula tests. Defaults are starting assumptions; use your own measurements and prices for a specific job. Material changes and source references are documented with the relevant tool or guide.
New guides and calculator additions follow community demand. If there's a calculator you keep wishing existed (resin print cost, multi-printer farm economics, enclosure power draw), tell us via contact.
Monetization and what we do not do
This site may earn from Amazon affiliate links on pages where a product is directly relevant to the calculator or guide. Those picks are a small monetization test, not paid reviews, and not manufacturer-controlled placements. When a guide names a specific printer or filament brand, that name was chosen because it's relevant to the topic.
Calculations run in your browser. Vercel Web Analytics provides aggregate traffic information, with calculator query parameters removed from analytics event URLs. Bookmarked and shared URLs contain your inputs, and opening them makes a request to the site. Some tools offer optional preferences saved on your device. Read the privacy policy for details.
Feedback
Found a bug, disagree with a formula, or have an idea for a new calculator? Use the contact page. Include the inputs, the result shown and what you expected so the issue can be reproduced.