Poster Size & Aspect Ratio Calculator

Overview

Check image aspect ratio, 300 DPI print size, and compatibility with common poster formats.

Quickly check an image's aspect ratio, pixel dimensions, maximum print size at 300 DPI, and compatibility with common poster formats. Upload an image directly in the extension to see: • Image dimensions in pixels • Simplified aspect ratio • Maximum print size at 300 DPI • Compatibility with A4, A3, A2, A1 and popular metric and inch-based poster sizes • Whether each format is an exact fit, a good fit, or requires cropping Images are processed locally in your browser. The extension does not upload images, use a backend, or require an account.

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Details

Version
1.0.0
Updated
July 22, 2026
Flag concern
Size
8.25KiB
Languages
English
Developer
Website
Email
support@yougotprints.com
Non-trader
This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

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The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, visit the developer's support site

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