Print & business-card tools, without the guesswork
Free, browser-based calculators and a sourced reference for anyone who prints. No signup, nothing to install.
Paper weight converter
GSM ↔ lb (text, cover, bond) with the maths shown.
Card sizes by country
89×54 mm (MY/CN), 85×55 (UK/EU), 3.5×2 in (US), and more.
Spec cheat sheet
Every business-card spec on one page.
All tools
Bleed & safe-area, size/DPI, colour, QR, contrast, and more.
Guides
Topic hubs: paper & stocks, finishes, sizes, colour, pre-press.
Answers
Short, direct answers to common print questions.
What this is
PrintRuler is an independent reference for small-format print. Facts are stated plainly and every source is cited — so designers, buyers and printers can settle spec questions in seconds.