Here’s a quick little hack to make life easier, especially when you’re looking to get a tight radius in an app like Seamless.
While the United States has mostly shunned the metric system, you can use kilometers instead of miles in most apps to your advantage. If you want a tighter radius than one mile (the default in Seamless on the iPhone), switch the unit of measurement to kilometers. Instead of one mile, you’ll get food from the nearest 0.62 miles. Instead of the nearest half mile, you’ll get the nearest 0.31 miles.