How Far Can I Walk in 10 Minutes?

I try to complete a 1 hour walk every day. While I enjoy walking I do also get bored with walking the same old routes around my neighborhood. Which is why I've been using Mirumi's Walking Distance Map to find whereas I can walk within 1 hour of my home. The Walking Distance Map is an isochrone map which was designed to help Japanese house hunters to define a property search area within a 30