See how many inches, and millimetres, a pixel count covers at a given DPI.
| Inches | – |
| mm | – |
Use this for print size: 3000 px at 300 DPI is 10 inches wide. Also handy for screen CSS pixels versus physical size at 96 DPI.
Inches = pixels ÷ DPI, then millimetres = inches × 25.4. DPI must be positive. This is one dimension, not a full page layout.
Pixels: How many pixels along the side you care about.
DPI: Dots (or pixels) per inch — 96 for many screens, 300 for typical print.
Inches: Physical length at that DPI.
mm: The same length in millimetres.
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