Photo Enlargement Calculator

Calculate the maximum enlargement factor before quality degrades. Compare your source resolution against target print sizes.

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How It Works

Every image has a maximum print size before quality visibly degrades. The native print size at 300 PPI is your baseline for gallery-quality prints. Beyond that, you are enlarging (interpolating) pixels. Traditional interpolation holds up to about 150% (1.5x). Modern AI upscalers like Topaz Gigapixel or Adobe Super Resolution can push to 4x while maintaining good perceived sharpness, but cannot truly recover optical detail.