1 knot is about 1.15 mph
20 knots = 23 mph
you may try this online converter next time
http://www.rillocenter.com/convert/speed.html
20 knots = 23.015589 mph
20 mph = 17.4 knots
23.2 MPH
17 knots=19.56 mph
20 knots is about 23.02 miles per hour (knots x 1.150779448 = mph).
10 knots = 11.51 mph
295 knots = 339.5 mph
620.270122 mph ==
20 mph = about 17.4 knots
17 knots=19.56 mph
i knot in mph is 0.868976242 knots so 503 mph is 437,095049726 knots
20 knots is about 23.02 miles per hour (knots x 1.150779448 = mph).
11 knots = 12.65 mph
16.6 knots is about 19.1 mph
1,040 mph = 903.73 knots
356 mph = 309.35 knots.
317 mph = 275.5 knots
1.5 knots = 1.7 mph
3.47590496 knots = 4 mph
74 knots is 85.1577 MPH