About PrintSizer

PrintSizer is a small collection of free, browser-based calculators for people who prepare images for print, web and product production: print shops, Etsy sellers, designers, photographers and anyone who has ever asked "what size will this image print?"

How the tools work

Every calculator runs entirely in your browser with JavaScript. No account, no file upload, no server storage. The maths used is explained on each page so you can check the result yourself.

Who writes PrintSizer

PrintSizer is written and maintained by Jet Hu, a software developer who builds web and mobile apps. The site also includes a small print lab: real test charts are printed through commercial services, photographed and documented so the advice can be checked against physical output. Read the author profile or see how we test print quality.

Contact

For questions, corrections or feedback, email husongjie521@gmail.com.