A nautical mile is the length that represents one minute of arc (1/60 degrees) along any latitude or one minute of arc of longitude along the equator.
Unfortunately, the earth is not a perfect sphere so the two measures are different. By international agreement, it has been set at 1,852 metres exactly - which is about 6076 feet (not 6080).
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One Ground Mile = 5280 ft , One Air or Nautical Mile = 6076.115 ft
1 mile 450 feet = 5730 feet
its ± 34.6 mph.30 knots = 34.52 mphIf you meant nautical miles, then 30. Nautical Miles (per hour) and knots are basicly the same thing. the only difference is knots is based over seas soley due to raising and lowering tide levels (make it less accurate than physical distance) mile however is the distance of the ground. this is why most boats and all military have to recheck there voyage distance before setting sail as the tide may add or remove distance on them.1 knot means 1 nautical mile per hour. The nautical mile used to be 6080 ft but it is now defined as exactly 1852 meters which makes it 6076 ft. The ratio to a normal mile is 1.1508, so 30 knots = 34.52 mph
There is 5,280 ft in a mile. There is 2,640 ft in a half mile, therefore, 1.5 miles is equal to 7,920 ft.
26400 ft are in 5 miles. 5280 ft in one mile