How far back should you stand?

Enter the print DPI and width to estimate viewing distances where individual pixels become invisible.

Inputs

Print DPI

Print Width (inches)

Results

Adjust the inputs to see results.

Pixel pitch = 25.4 / DPI mm. Minimum viewing distance ≈ pixel pitch × 3438 / 25.4 inches (one arcminute resolution).

All formulas verified by automated tests.