PrintSizeGuide

About PrintSizeGuide

PrintSizeGuide.com is a free, independent reference site for standard print sizes, paper dimensions, and printing specifications. Our goal is simple: provide accurate, clearly organized data so that anyone preparing a file for print can find the exact measurements they need in seconds.

Why We Built This

Printing should not require guesswork. Yet finding reliable, well-organized size data is harder than it should be. Manufacturer sites bury dimensions in product pages. General reference sites mix accurate data with outdated or rounded numbers. Forums give conflicting answers.

We built PrintSizeGuide to solve that. Every page on this site is designed to answer one question as directly as possible — with verified measurements in inches, centimeters, millimeters, and pixels at standard print resolutions.

What We Cover

PrintSizeGuide provides reference data and tools for:

  • Photo print sizes — Standard dimensions from wallet (2.5x3.5) through large format (24x36), with aspect ratios and minimum resolution requirements.
  • Paper sizes — ISO A series (A0–A10), US ANSI sizes (Letter, Legal, Tabloid), and international comparisons.
  • Poster sizes — Standard poster dimensions for commercial, academic, and advertising use.
  • Canvas print sizes — Common stretched canvas dimensions with depth and resolution guidance.
  • Picture frame sizes — Standard frame dimensions with mat opening measurements.
  • Specialty formats — Business cards, envelopes, banners, signs, and passport photos by country.
  • Printing tools — DPI calculator, unit converter, and print cost estimator.

Our Data Sources

Accuracy matters. Every measurement on this site is sourced from or verified against published standards and official specifications:

  • ISO 216 — International standard defining A-series and B-series paper sizes. Published by the International Organization for Standardization.
  • ISO 269 — International standard defining C-series envelope sizes.
  • ANSI/ASME Y14.1 — American National Standards Institute standard defining US engineering and architectural paper sizes (Letter, Legal, Tabloid, Ledger).
  • ICAO Doc 9303 — International Civil Aviation Organization specification for travel document photo dimensions, referenced in our passport photo sizes guide.
  • Country-specific government requirements — Passport and visa photo specifications are verified against the official guidelines of each country's issuing authority (U.S. Department of State, UK HM Passport Office, EU Council Regulation, etc.).
  • Industry standards — Photo print sizes, canvas sizes, and frame sizes follow established industry conventions used by major photo labs and frame manufacturers in the United States and internationally.

If you find a measurement that appears incorrect, we encourage you to contact us at contact@printsizeguide.com with the specific page and the source of the discrepancy. We review and correct reported errors within 48 hours.

Editorial Standards

  • We do not publish approximate or rounded measurements when exact values are available.
  • Every conversion between units is calculated, not estimated. Inches to millimeters uses the exact factor of 25.4 mm per inch.
  • Pixel dimensions at specific DPI are calculated using the formula: pixels = size in inches × DPI.
  • We distinguish between exact standard sizes (defined by ISO or ANSI) and conventional sizes (industry practice without formal standardization), and we label them accordingly.
  • We do not accept payment for editorial content. Product mentions, where they exist, are clearly identified as affiliate links.

Advertising & Affiliate Disclosure

PrintSizeGuide is a free resource supported by display advertising and affiliate partnerships. This means:

  • Some pages display ads served by third-party advertising networks.
  • Some pages contain links to products or services (such as printing services, frames, or paper) that are affiliate links. If you purchase through these links, we may earn a small commission at no additional cost to you.
  • Affiliate relationships never influence our editorial content, measurements, or recommendations. We recommend products based on relevance to the topic, not commission rates.

Who We Are

PrintSizeGuide is maintained by a small team of web developers and print industry enthusiasts. The site launched in April 2026 with the mission of becoming the most accurate and usable print size reference on the web.

We are not affiliated with any paper manufacturer, printing company, or standards organization.

Contact

For corrections, questions, or partnership inquiries:

Email: contact@printsizeguide.com

We typically respond within 1–2 business days.