Rectangle Marquee dimension

When using the Rectangular Marquee tool, it would be cool to be able to see how large the rectangle is. I’m trying to consistently select 8x8 squares and 8x16 and it would be much easier if when sizing the rectangle it showed wxh where w is the number pixels the selection is wide and h is the number pixels the selection is tall. Thanks!

that is actually a thing, look on the bottom oh the canvas screen you’sse it there, its a bit hard to understand thought, you often get lost.