Convert millimeters to pixels and pixels to millimeters with custom PPI. Ideal for web, UI, and print design.
Formula: (mm ÷ 25.4) × PPI
Formula: (px ÷ PPI) × 25.4
| Millimeters (mm) | Pixels (px) @ 96 PPI |
|---|---|
| 1 mm | 3.78 px |
| 5 mm | 18.90 px |
| 10 mm | 37.80 px |
| 25.4 mm (1 inch) | 96 px |
| 50 mm | 189.00 px |
Note: mm to px conversions always depend on PPI (pixels per inch). For web and CSS layouts, 96 PPI is commonly used as the reference.
Common MM to Pixel sizes at 96 PPI…
1 mm to px is 3.78 px
2 mm to px is 7.56 px
3 mm to px is 11.34 px
4 mm to px is 15.12 px
5 mm to px is 18.90 px
6 mm to px is 22.68 px
7 mm to px is 26.46 px
8 mm to px is 30.24 px
Common MM to Pixel sizes at 96 PPI…
10 mm to px is 37.80 px
12 mm to px is 45.36 px
15 mm to px is 56.70 px
18 mm to px is 68.04 px
20 mm to px is 75.59 px
22 mm to px is 83.15 px
25 mm to px is 94.49 px
30 mm to px is 113.39 px
Common MM to Pixel sizes at 96 PPI…
40 mm to px is 151.18 px
50 mm to px is 188.98 px
55 mm to px is 207.87 px
60 mm to px is 226.77 px
70 mm to px is 264.57 px
75 mm to px is 283.46 px
80 mm to px is 302.36 px
85 mm to px is 321.26 px
Common MM to Pixel sizes at 96 PPI…
90 mm to px is 340.16 px
100 mm to px is 377.95 px
120 mm to px is 453.54 px
150 mm to px is 566.93 px
180 mm to px is 680.31 px
200 mm to px is 755.91 px
210 mm to px is 793.70 px
250 mm to px is 944.88 px
Here are some of the frequently asked questions about conversions…
If you work with CSS, responsive layouts, or UI design, these converters will help you switch between different units quickly.
Each tool solves a specific use case – whether you're adjusting font sizes, spacing, or converting print measurements to screen pixels. Explore the full set below to speed up your workflow…
PX to CM Converter – Convert pixels into centimeters for print-friendly layouts and accurate sizing.
CM to PX Converter – Convert centimeters to pixels when designing for screens or digital assets.
PX to REM Converter – Convert pixels to rem for scalable and accessible typography.
REM to PX Converter – Convert rem values back to fixed pixel units for precise layout control.
PX to Inches Converter – Convert pixels into inches for print sizes or physical measurements.
Inches to PX Converter – Convert inches into pixel dimensions based on standard screen density.
MM to PX Converter – Convert millimeters to pixels for UI, print, and product mockups.
PX to MM Converter – Convert pixels to millimeters with accurate unit mapping.
MM to Inches Converter – Convert millimeters into inch values for sizing and print design.
Inches to MM Converter – Convert inches into millimeters for exact physical measurements.
VW to PX Converter – Convert viewport-width units into pixel values for responsive layouts.
PX to VW Converter – Convert pixel values into viewport-width units for fluid UI scaling.
Bridging the divide between a physical brief and a digital product is a daily challenge for designers and developers. A reliable mm to px converter isn't just a small utility; it's a critical tool for ensuring brand accuracy and improving workflow efficiency.
I hope this tool and the guide have clarified the process for you. I encourage you to bookmark this page, share it with your team, and explore the other small yet useful tools I've built to make your creative process just a little bit easier.
As someone who's also running an agency, we thrive on precision. I've built these tools to ensure every project, from the initial print spec to the final line of code, is pixel-perfect just like ours 🙂
Cheers,
Kuldeep