About PrintCalc

Free tools for every maker

PrintCalc publishes free, accurate 3D printing calculators for makers, hobbyists and small print shops. Every tool runs entirely in your browser, requires no account, and shows the formula behind the result — so you can trust the numbers and understand how they were derived.

Our goal

Help you plan prints confidently, control material costs and price your work fairly — whether you're a weekend hobbyist or running a small print-on-demand shop.

We built the tools we wished existed when we started printing: fast, honest and transparent about their assumptions.

What we cover

• Cost & Pricing — material cost, electricity cost, selling price with margin and marketplace fees
• Filament — weight-to-length conversion, cost per gram, prints per spool
• Resin — SLA/MSLA print cost from resin volume and electricity
• Model & Settings — infill weight estimation and scale percentage calculator

Privacy and advertising

All calculations happen locally in your browser. No input values are sent to any server. The site is supported by advertising (Google AdSense) to keep all tools free. See our Privacy Policy for full details.

Contact and corrections

Spotted an error in a formula? Have a calculator idea? We'd love to hear from you — get in touch.

We keep the tools fast and ad-light on purpose, so they stay genuinely useful. The goal is never to add friction — just honest math.