1 nautical mile = approximately 1.151 miles.
One mile = 5280 feet
One nautical mile = 6000 feet
So one nautical mile = 1.1363636 miles

6000 ÷ 5280 = 1.1363636
1 nautical mile=1.15077945 miles

The formula is one land mile equals approximately .868 air miles.

Air miles are also called nautical miles.