MM to PX Converter

📏 MM to PX Converter

Convert print measurements to digital pixels for design workflows

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Master the conversion from physical millimeters to digital pixels!

MM to PX conversion is essential for translating physical measurements to digital displays. Millimeters (MM) are the standard unit for physical measurements, while pixels (PX) are the fundamental unit of digital displays, making this conversion crucial for print-to-digital workflows and cross-platform design consistency.

Why convert MM to PX? While MM units work perfectly for physical measurements and print design, PX units are essential for digital interfaces and screen-based design. Converting between these units ensures your physical designs translate accurately to digital platforms and maintains measurement consistency across different media.

Key Benefits of Converting MM to PX:

  • Print to Digital Translation: Convert physical designs to digital interfaces
  • Cross-Platform Consistency: Ensure measurements work across all devices
  • Responsive Design: Create consistent experiences across screen sizes
  • Print Production: Bridge the gap between physical and digital design
  • Design System Integration: Maintain measurement standards across platforms

How to Convert MM to PX

The conversion formula depends on DPI: Multiply the millimeter value by DPI and divide by 25.4 (millimeters per inch).

Conversion Formula:

PX = (MM × DPI) ÷ 25.4

Example (96 DPI): (10mm × 96) ÷ 25.4 = 37.8px

Example (72 DPI): (10mm × 72) ÷ 25.4 = 28.35px

Example (150 DPI): (10mm × 150) ÷ 25.4 = 59.06px

Step-by-Step Conversion Process:

  1. Set DPI: Choose appropriate DPI for your target display
  2. Multiply by DPI: Convert millimeters to dots per inch
  3. Divide by 25.4: Convert to final pixel value (25.4mm = 1 inch)
  4. Round Appropriately: Apply rounding based on design precision needs
  5. Verify Output: Test measurements in target digital medium

Common MM to PX Conversion Values

Here are the most commonly used MM to PX conversions for print to digital design. These values represent standard physical measurements used across different DPI settings and help maintain measurement consistency when moving from print to digital.

Measurement Scale – MM to PX:

MM Value PX (96 DPI) PX (72 DPI) PX (150 DPI) PX (300 DPI) Common Use
1mm 3.78px 2.83px 5.91px 11.81px Very small elements, borders
2mm 7.56px 5.67px 11.81px 23.62px Thin lines, small gaps
3mm 11.34px 8.50px 17.72px 35.43px Small icons, thin borders
5mm 18.90px 14.17px 29.53px 59.06px Standard borders, small buttons
8mm 30.24px 22.68px 47.24px 94.49px Medium buttons, icons
10mm 37.80px 28.35px 59.06px 118.11px Standard buttons, touch targets
15mm 56.69px 42.52px 88.58px 177.17px Large buttons, cards
20mm 75.59px 56.69px 118.11px 236.22px Card widths, large elements
25mm 94.49px 70.87px 147.64px 295.28px Standard card height
30mm 113.39px 85.04px 177.17px 354.33px Large cards, banners
40mm 151.18px 113.39px 236.22px 472.44px Hero sections, large banners
50mm 188.98px 141.73px 295.28px 590.55px Full-width elements
100mm 377.95px 283.46px 590.55px 1181.10px Page sections, large displays

MM vs PX – Understanding Measurement Units

MM vs PX serve different purposes in design and development. Understanding when to use each is crucial for effective cross-platform design workflows.

When to Use MM Values:

  • Print Design: Physical documents and printed materials
  • Physical Measurements: Real-world objects and prototypes
  • Manufacturing: Product design and specifications
  • Architecture: Building plans and technical drawings
  • Traditional Publishing: Books, magazines, and print media

When to Use PX Values:

  • Web Design: Digital interfaces and responsive websites
  • Mobile Apps: iOS, Android, and cross-platform applications
  • Digital Displays: Monitors, TVs, and digital signage
  • UI/UX Design: Interface design and user experience
  • Digital Assets: Icons, graphics, and screen-based content

Best Practices for MM to PX Conversion:

🎯 Match Target Display

Select DPI that matches your target device.

Web: 96 DPI • Mobile: 150+ DPI • Print: 300 DPI

📐 Consider Touch Targets

Ensure converted elements meet accessibility standards.

Minimum 44px for touch targets

🎨 Account for Scaling

Consider how measurements scale across different devices.

📱 Test Across Devices

Verify measurements on actual target devices.

Author

  • Manish Kumar

    Manish holds a B.Tech in Electrical and Electronics Engineering (EEE) and an M.Tech in Power Systems, with over 10 years of experience in Metro Rail Systems, specializing in advanced rail infrastructure. He is also a NASM-certified fitness and nutrition coach with more than a decade of experience in weightlifting and fat loss coaching. With expertise in gym-based training, lifting techniques, and biomechanics, Manish combines his technical mindset with his passion for fitness.

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