The answer will depend if you mean 800 nautical miles (as would often be used in relation to knots) or 800 normal miles.
If 800nm (nautical miles) then the answer is simply 800/5 = 160 hours.
If normal miles then we can answer by making a conversion from knots to mph first. 5 knots = 5 * 1.15077945 = 5.75389725 mph
Thus time = 800/5.75389725 = 139.036 hours (accurate to 3 decimal places).
If you were to travel 4 miles at 6 knots, It would be approximately 34 minutes and 50 seconds!
One hour.
1500/11 hours
36/14 hours
139.04 hours or 5.7932 days.
If you were to travel 4 miles at 6 knots, It would be approximately 34 minutes and 50 seconds!
One hour.
1500/11 hours
36/14 hours
139.04 hours or 5.7932 days.
About 10.41 days at 6 knots.
1.22 hours.
3 hours
About 13.1 hours.
9 hours
11½ days
2½ days