With this information, you can calculate the quantity of nautical miles 521 miles is equal to.

¿What is the inverse calculation between 1 nautical mile and 521 miles?

Performing the inverse calculation of the relationship between units, we obtain that 1 nautical mile is 0.0022087897 times 521 miles.

Which is the same to say that 521 miles is 452.73662 nautical miles.

Five hundred twenty-one miles equals to four hundred fifty-two nautical miles. *Approximation

A nautical mile is zero times five hundred twenty-one miles. *Approximation