🖥️ CSS & Design
px (at 96 DPI) to mm Converter
Convert px (at 96 DPI) to mm instantly with a reference conversion table.
Quick answer: To convert px (at 96 DPI) to mm, multiply by 0.264583. For example, 1 px (at 96 DPI) = 0.264583 mm. Use the calculator below for any value.
px (at 96 DPI) to mm
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Common conversions
| px (at 96 DPI) | mm |
|---|
Formula:
How to convert px (at 96 DPI) to mm
1
Enter your value
Type the number of px (at 96 dpi) you want to convert into the left box. The result in mm appears instantly in the right box. You can also type into the right box to convert in the other direction.
2
Use the swap button
Click the ⇄ Swap button to reverse the conversion — mm to px (at 96 DPI). Your current value carries across so you don't have to re-enter anything.
3
About px (at 96 DPI) and mm
px (at 96 DPI) and mm are common css measurements.
💡 Did you know?
1 CSS px = 0.2646 mm at 96 DPI. CSS 'mm' units are defined relative to the CSS reference pixel at 96 DPI — not physical screen millimetres on HiDPI displays. On a 192 DPI Retina screen, 1 CSS px renders as 2 physical pixels, but remains 0.2646 mm in the CSS layout model.
📊 Common conversions at a glance
| px (at 96 DPI) | mm |
|---|---|
| 1 | 0.2646 |
| 4 | 1.058 |
| 8 | 2.117 |
| 16 | 4.233 |
| 32 | 8.467 |
| 48 | 12.7 |
Reviewed for 2026. px (at 96 DPI) ↔ mm conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.