You can easily convert 630 nautical miles into kilometers using each unit definition:
With this information, you can calculate the quantity of kilometers 630 nautical miles is equal to.
In 630 nm there are 1166.76 km.
Which is the same to say that 630 nautical miles is 1166.76 kilometers.
Six hundred thirty nautical miles equals to one thousand one hundred sixty-six kilometers. *Approximation
Performing the inverse calculation of the relationship between units, we obtain that 1 kilometer is 0.00085707429 times 630 nautical miles.
A kilometer is zero times six hundred thirty nautical miles. *Approximation