You can't convert between units that measure completely different things. If this is a speed problem, as is most likely, you have to decide how fast you will travel, then use the formula:
distance = speed x time
439 miles is 2,317,900 feet.
probably 9 and a 1/2 hours
439 minutes is 7 hours and 19 minutes.
439 knots=505.192178 miles per hour
439 minutes. about a mile per minute, so 4 hours and 39 minutes.
439 miles
It is 439 miles according to Google Maps.
The distance between Bellingham, Washington and Roseburg, Oregon is approximately 500 miles if traveling by car.
It is 439 miles according to Google Maps.
Since a day has 24 hours, you multiply the number of days by 24.
about 420 miles to drive
439 miles by taking I-10 E