Pixels and print dimensions

Image dimension calculator

Convert pixels, centimetres, millimetres and inches using the DPI required by your form or printer.

DPI is required whenever pixels are involved. It does not change the calculation between physical units.

How it works

01

Enter dimensions

Use the width and height supplied by the application or print requirement.

02

Choose units and DPI

DPI connects physical dimensions to pixels.

03

Copy the result

Use the calculated dimensions in FormReady's resize or passport-photo tools.

Common questions

Why does DPI matter for pixels?

DPI states how many pixels represent one printed inch, allowing physical measurements to be converted into pixel dimensions.

Does this calculator edit a file?

No. It performs the conversion in your browser and uploads nothing.

Why can portals give slightly different pixel values?

Conversions may produce fractions, so the final pixel value must be rounded to a whole number.