PX to MM Converter

Convert Pixels to Millimeters (MM) for precision print work.

25.4mm

Formula: PX ÷ 3.7795 ≈ MM

About PX to MM Converter

The PX to MM converter delivers precision metric measurements for technical design, engineering drawings, and detailed print work. Millimeters provide the finest granularity in the metric system. With CSS defining 1 inch as 96 pixels and 25.4 millimeters, this tool calculates exact millimeter values for pixel-based designs.

Formula

MM = PX ÷ 3.7795276

Examples

96px = 25.4mm (1 inch)
192px = 50.8mm
3.78px ≈ 1mm =

Reference

  • 1 inch = 25.4 millimeters (exact)
  • 1 millimeter ≈ 3.7795 pixels
  • 1 centimeter = 10 millimeters
  • Millimeters are used for precision measurements in technical and print design

Frequency Asked Questions

How many pixels equal 1 millimeter?

In CSS, 1 millimeter equals approximately 3.7795 pixels.

When should I use millimeters instead of centimeters?

Use millimeters when you need precision, such as technical drawings or fine print details.

Are CSS millimeters accurate for physical printing?

For print output at standard DPI, yes.