About

Measure images with confidence.

Pixel Caliper is a focused set of calculators for designers, photographers, printers, developers, and anyone preparing images for a screen or physical output.

What the tools do

The calculators connect pixel dimensions, physical measurements, density, ratio, megapixels, and display size. They are designed to expose the assumptions—especially DPI and PPI—that simplistic conversions often hide.

How calculations work

All results are calculated from the values in your browser using standard geometric and unit-conversion formulas. Values may be rounded for display. For production printing, verify bleed, color profile, substrate, printer capability, and finishing requirements with your print provider.

Privacy by design

The launch tools do not upload images or require accounts. Your inputs stay in the page. Read the privacy note for details.