How do I convert nautical miles back to miles?

Use the reverse converter: 1 nautical mile equals 1.15078 mi.

Is this converter accurate?

Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

To convert miles to nautical miles, multiply the value by 0.868976242.

nmi = mi × 0.868976242

40 mi × 0.868976242 = 34.76 nmi

Mile (mi): Used for road distances in the US and UK. The statute mile is exactly 1,609.344 metres, derived from the Roman mille passus.
Nautical Mile (nmi): Used in sea and air navigation worldwide. Defined internationally as exactly 1,852 metres, close to one minute of latitude.

How do I convert miles to nautical miles?: To convert miles to nautical miles, multiply the value by 0.868976242.
How many nautical miles are in 1 mile?: 1 mile equals 0.868976 nmi.
How many nautical miles are in 10 miles?: 10 mi equals 8.68976 nmi.
How do I convert nautical miles back to miles?: Use the reverse converter: 1 nautical mile equals 1.15078 mi.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.