Does anyone know whether a distance calculator like this exists (see details)

What I’m hoping to find is a tool that will allow me to enter a starting point (an address or even just a city) and a kilometre figure, and calculate the nearest points of interest or cities.

I’ve been keeping track of how far I’ve “gone” on my stationary bike, and I’m curious as to where I would have ended up were I actually cycling.

Does anyone know whether some kind of tool exists that would figure this out for me?