Print Size to Megapixels Calculator

Estimate how many megapixels are required for a chosen print size and PPI.

Reviewed 2026-08-181 referenced sourceFree · no account

Quick calculator

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Use the real values from your job. Optional fields can stay blank; zero should only be used when the value genuinely does not apply.

Common PPI

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What the result is useful for

Print Size to Megapixels Calculator is useful when you need to turn pixel dimensions and a physical output size into a decision about resizing, cropping or whether the source file has enough raster detail.

How the calculation works

Required megapixels = (print width × PPI) × (print height × PPI) ÷ 1,000,000.

What this calculator cannot know

The math can describe pixels, PPI and geometry, but it cannot judge subject detail, sharpening, resampling quality, printer process, media or viewing distance. Use the output provider’s requirement when one exists.

Sources and current specifications

Adobe — Resolution specs for printing imagesAdobe describes 300 PPI as a standard high-quality close-view print target and notes that large-format work viewed farther away can use lower resolution.Verified 2026-08-18

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