Time from a Distance in Nautical Miles and Speed in Knots

Calculate the time it takes to travel a certain distance in nautical miles based on a speed in knots. A knot is a unit of speed equal to one nautical mile per hour. The symbol used for a knot is kn or kt.

Formula

time = distance ÷ speed

Conversions

one nautical mile (nmi) = 1.852 kilometres (km)
one nautical mile (nmi) = 1.15077944802354 miles (mi)
one knot = 1 nautical mile (nmi) per hour
one knot (kn) = 0.514444444444444 metres per second (m/sec)
one knot (kn) = 1.68780985710119 feet per second (ft/sec)

Example Calculation

How long will it take to travel 4325 nautical miles at a speed of 45 knots?

Calculate the time in hours by dividing the nautical miles by the knots;

4325 ÷ 45 = 96.1

It will take 96.1 hours to travel the 4325 nautical miles at a speed of 45 knots.
96 hr - 6 min - 40 sec