This sounds about right. What I remember reading is that people pay Google Ads to serve their ads to people for around $10 CPM (cost per mille), so that is $10 per 1000 impressions.

And if Google Adsense pays you 50%, you end up with $5 RPM (revenue per mille) for your website.

I think this is similar for Youtube, except those are video ads, I remember seeing "this is how much I made from Youtube" and those were roughly $5-ish RPM and much higher for niche channels like finance etc.

It's also geo and category specific.