What is a good web site for a 20-mile (selectable distance) circle from any given zip code?

What about using the maps or driving app on your phone? Search for whatever and let the phone give you driving directions. A search for hardware stores on my phone will show the closest ones and give me directions if I needed them.

You didn't say whether you were using a phone but since you put the Windows group on for your home repair parts, you're probably using Windows Firefox.

For that, you can try this map which will draw a series of circles for you.

Probably not quite what you want but go to maps.google.com and search for the area you are interested in. Center the area.

Right click with the cursor at the selected point and pick 'Measure Distance' from the menu. That will put a point on the map. Click anyplace else and you will have another point. Drag it until the scale shows 20 miles or the popup shows a total distance of 20 miles.

Drag the point around in a circle trying to stay close to 20 miles. It's not going to draw a circle on the map but you can get a good idea of what is within a 20 mile radius.

There's always yelp.com :