Check Image DPI Online

DPI (dots per inch) determines how many pixels are packed into each printed inch. At 300 DPI — the standard for professional printing — a 3000-pixel-wide image prints at 10 inches. The EXIF DPI tag is just metadata and doesn't change the actual pixel count. This tool calculates your real printable dimensions from pixel data, so you know exactly what sizes your image supports at different quality thresholds (72, 150, and 300 DPI). You can also check image DPI online for a quick calculation.

Before sending files to a print lab or uploading to a print-on-demand service, verify they meet the required size and resolution specifications. This avoids rejected orders, reprints, or poor-quality results with visible pixelation. The scanner shows maximum print dimensions at different DPI levels, flags images that fall below common thresholds, and suggests optimal print sizes based on the available pixel data.

Professional photo prints and magazines require 300 DPI. Posters and large-format prints viewed from a distance can use 150 DPI. Billboard and signage printing works at 72 DPI or lower because viewing distance compensates for lower density. The scanner evaluates your image against all three tiers and reports the maximum dimensions achievable at each quality level, along with common print size recommendations (4×6, 8×10, 11×14, 16×20, 24×36). Read our print readiness guide for detailed standards.

Print readiness focuses on dimensions and DPI — can the image be printed at the desired size without pixelation? The Quality Analyzer evaluates sharpness, noise, compression artifacts, and overall image quality. For the best print results, use both: check that dimensions are sufficient and that the image is sharp enough to hold up in print. For full camera metadata, use the EXIF Checker.