What software do you use to compute distances? The distances it gives are "as the crow flies" rather than driving distances. Specifically, I live near a large

What software do you use to compute distances? The distances it gives are "as the crow flies" rather than driving distances. Specifically, I live near a large bay with one bridge across it about 50 miles from me. A city on the opposite side of the bay from me is listed as being 20 miles away. Ditto for a city on the opposite side of a river with only a bridge. This isn't the first place I've seen it, just wondering where you get the distances. Also, how do you sort? I kind of expected a sort by distance or denomination or even alphabetical, but I couldn't figure out the order. Nice service though! I found a few churches near me I didn't even know existed, and I've been in the area 15 years.