B4J Question A4 to Pdi

the A4 format as I find it in px, example:

A4 size at 72 DPI 595 pixels 842 pixels
A4 size at 200 DPI 1654 pixels 2339 pixels
A4 size at 300 DPI 2480 pixels 3508 pixels
A4 size at 400 DPI 3307 Pixels 4677 pixels
A4 size at 600 DPI 4961 Pixels 7016 pixels
A4 size at 1200 DPI 9921 Pixels 14031 Pixels

A4 size at 160 DPI (w Pixel?, H Pixel?), how do i calculate it?

https://www.blitzresults.com/it/pixel/ ??