Display user age in birthday widget

Hello, I'm not sure if this is something I could get some assistance with, but I'm looking to make a modification to a simple buddypress "birthday" display widget on my website.

I'm looking to add age into the birthday widget so that instead of just "[birthdate]" it says "[X] years old on [birthdate]" in the widget.

It would also day on the actual birthday "[X] years old today, Happy Birthday!"

This is a very simple widget and I've been able to modify it somewhat, but not quite 100%. If I could get a little help, I'd just save me so many hours after the 2 days i've already spent! Thank you