A dimension of 3.5 cm width by 4.5 cm height is the standard physical size for a passport photo in many countries (including India). However, when uploading these photos online, websites require the dimensions to be in pixels. The pixel size depends directly on the DPI (Dots Per Inch) resolution.
3.5 cm x 4.5 cm is the standard passport size in India and the UK.
Pixels = (Centimeters / 2.54) × DPI.
Most government portals strictly require the 413 x 531 px resolution.
Most official forms (like UPSC, SSC, Visas) require 300 DPI resolution. At 300 DPI:
So, your image size should be 413 x 531 pixels.
If the website requires a lower or higher quality:
You can use MS Paint, Photoshop, or free online crop tools. Set the crop ratio to width 413 px and height 531 px.
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