To convert millimeters to Illustrator pixels, this calculator uses the same DPI-based formula Illustrator applies when rasterizing vector artwork or exporting to bitmap formats like PNG and JPEG.
Enter the mm value
Enter a millimeter value — such as 85 mm for a business card width or 210 mm for an A4 artboard. Illustrator artboards are typically set in millimeters for print, but pixel dimensions matter when you export or apply raster effects.
Select the DPI
Choose the PPI setting. Illustrator's Document Raster Effects Settings (Effect → Document Raster Effects Settings) defaults to 300 PPI for print. For screen output, 72 or 96 PPI is common. This PPI directly controls how vector-to-raster conversions resolve.
Read the pixel result
Read the pixel result. This value tells you the raster resolution your artwork will produce at export, or the effective resolution of raster effects like Drop Shadow and Gaussian Blur applied to vector objects.
Illustrator keeps artboards and path geometry in vector coordinates, but the pixel count matters whenever you export to raster formats or apply raster effects. The Document Raster Effects PPI setting controls this conversion — a higher PPI produces more pixels for the same physical size, yielding sharper raster output.