Android app to calculate prefixed length bike rides ?

Hi guys ! There is this GPS from Garmin, called the "Touring Plus", it's a new product from Garmin and it features Openstreetmap; the main feature of the device is that it can calculate for you all the routes in your area, so lets say that today I'm in a bit of a rush and I only want to do 15 miles, I'll insert that data into the garmin gps and in about a couple of seconds I'll get all the possible routes, that are suited for a road bike (so no off road), that the total length is approx 15 miles, that start from where I'm standing and end where I'm standing. I can then select the route I prefer on the basis of the total length, the elevation, and the roads. I was wondering if there is an android app, based on Openstreetmap, that works like the Garmin Touring Plus.