BlueprintLab ReferenceUnits · Images

DPI, PPI, px, mm & inch reference

Understand DPI/PPI and the relationship between pixels and physical dimensions.

ReferenceTools

pixels = inches × PPI (or target raster resolution)
DPI describes printer dot density; PPI describes pixel density. In everyday production workflows they are often used loosely, so verify the application.

ResolutionSizeApprox. pixels
300 DPIA42480 × 3508 px
300 DPIA51748 × 2480 px
350 DPIA42894 × 4093 px
600 DPIA44961 × 7016 px

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Sources & update policy

Verified: 2026-08-31. This page prioritizes primary standards and official registries. Time-sensitive items should be rechecked against the linked source.