MMtoPX is a free, fast, and precise online converter built for anyone who needs to translate millimeters into pixels — from graphic designers perfecting layouts to developers building pixel-perfect interfaces.
Our Story
MMtoPX was born from a common frustration: converting between physical millimeters and screen pixels shouldn't require digging through complex DPI tables or confusing formulas. Yet most tools online were either inaccurate, cluttered with ads, or failed to account for different screen resolutions and DPI settings.
We set out to build the simplest and most accurate MM-to-PX converter on the web — one that handles any DPI value, works instantly in your browser, and delivers results you can trust in your designs.
How MMtoPX Became Essential
Converting millimeters to pixels is a daily task for millions of creative and technical professionals worldwide. What started as a straightforward conversion tool quickly became something people relied on across many disciplines:
Graphic Designers
Designers use MMtoPX to translate print dimensions into screen-ready pixel values. Whether you're preparing assets for a website, a mobile app, or a digital billboard, knowing the exact pixel equivalent of your millimeter measurements ensures crisp, perfectly scaled visuals every time.
Web & App Developers
Front-end developers rely on pixel-perfect layouts. When design specs arrive in millimeters — from UI kits, print-first agencies, or hardware documentation — MMtoPX bridges the gap instantly, ensuring CSS values and component dimensions match the original intent exactly.
Print & Publishing
Print professionals preparing artwork for digital proofing need accurate pixel conversions at specific DPI settings. MMtoPX supports custom DPI values — 72, 96, 150, 300, or any custom resolution — making it indispensable for prepress workflows and digital publishing pipelines.
UI/UX Professionals
UI/UX designers work across devices with varying pixel densities. MMtoPX helps them convert physical measurements into pixel values for any screen — from standard 96 DPI monitors to high-density Retina displays — ensuring consistent user experiences across all platforms.
Students & Educators
Students learning about digital imaging, resolution, and screen technologies use MMtoPX to understand the relationship between physical measurements and digital pixels. Educators recommend it as a quick reference tool for design and computer science courses.
Global Reach
With support for multiple languages and the ability to work with any DPI setting used worldwide, MMtoPX serves users across the globe. Whether you work in metric-first Europe or mixed-unit environments, we deliver instant, accurate conversions.
What made MMtoPX essential wasn't just accuracy — it was simplicity. By providing instant conversions with customizable DPI, a clean interface, and zero learning curve, we removed every barrier between a measurement and its pixel equivalent.
What We Offer
MMtoPX isn't just a single converter — it's a complete toolkit for millimeter-to-pixel conversion:
- MM to PX Converter: Instantly convert any millimeter value to pixels at your chosen DPI
- Custom DPI Support: Set any DPI value — 72, 96, 150, 300, or any custom resolution for precise results
- Reverse Conversion: Convert pixels back to millimeters just as easily
- Common Presets: Quick-access presets for standard screen resolutions and print DPI values
- Bulk Conversion: Convert multiple values at once for efficient workflow integration
- Educational Resources: In-depth guides on DPI, PPI, screen resolution, and how physical units map to digital pixels
- Multilingual Support: Available in multiple languages to serve our global user base
Our Principles
Every conversion uses the exact mathematical formula (pixels = mm × DPI ÷ 25.4). No rounding shortcuts, no approximations — just accurate results.
All conversions happen in your browser — no server requests, no loading spinners, no waiting. Type and see pixel values in real time.
Your data stays on your device. We never collect, store, or transmit the values you enter into our converter.
Free to use, multilingual, mobile-friendly, and designed for users of all skill levels — from students to senior designers and developers.
Whether you need 72 DPI for web, 300 DPI for print, or a custom value for specialized hardware — MMtoPX handles it all seamlessly.
Looking Ahead
We're continuously improving MMtoPX based on user feedback and evolving design industry needs. Our roadmap includes expanded unit support, batch export features, API access for developers, and deeper educational content about digital resolution and screen technology.
Have a suggestion or feature request? We'd love to hear from you — visit our Contact Us page and let us know how we can make MMtoPX even better.
Get in Touch
We're always happy to hear from our users. Whether you have a question, found a bug, or just want to say hello:
- Website: www.mmtopx.com
- Email: contact@mmtopx.com
- Contact Page: www.mmtopx.com/contact-us