MM to PX for InDesign
Calculate the pixel dimensions of an InDesign page at a chosen image or PDF export resolution.
InDesign dimensions
InDesign output
Match this value to the effective export resolution in InDesign.
How MM to PX for InDesign Works
Enter the page size
Type the InDesign page dimensions in millimeters — for example, 210 × 297 mm for A4.
Set the export resolution
Choose the PPI for your export — 300 for high-quality print, 150 for magazines, 72 for screen.
Read the pixel output
The calculator shows the resulting raster dimensions when the page is exported at that resolution.
InDesign pages are defined in physical units like millimeters or inches. When you export a layout as a JPEG, PNG, or rasterized PDF, the export resolution determines the pixel count. A 210 mm-wide A4 page exported at 300 PPI yields 2,480 pixels of width. This calculator lets you pre-check those dimensions before exporting.
MM to PX for InDesign Formula
px = mm × (PPI ÷ 25.4) Conversion Formula The formula is the same standard conversion. InDesign's page size is the physical dimension; PPI controls how densely those millimeters are sampled into pixels on export.
= 2,480 px
= 1,748 px
= 2,550 px
MM to PX for InDesign Conversion Chart
InDesign export pixel dimensions at typical resolutions. Print workflows generally require 300 PPI; digital magazines often use 150 PPI.
| mm | 72 PPI | 96 PPI | 150 PPI | 300 PPI |
|---|---|---|---|---|
| 1 mm | 2.8346 | 3.7795 | 5.9055 | 11.8110 |
| 5 mm | 14.1732 | 18.8976 | 29.5276 | 59.0551 |
| 10 mm | 28.3465 | 37.7953 | 59.0551 | 118.1102 |
| 20 mm | 56.6929 | 75.5906 | 118.1102 | 236.2205 |
| 50 mm | 141.7323 | 188.9764 | 295.2756 | 590.5512 |
| 100 mm | 283.4646 | 377.9528 | 590.5512 | 1181.1024 |
| 148 mm | 419.5276 | 559.3701 | 874.0157 | 1748.0315 |
| 210 mm | 595.2756 | 793.7008 | 1240.1575 | 2480.3150 |
| 297 mm | 841.8898 | 1122.5197 | 1753.9370 | 3507.8740 |