DailyCalc

Knots to Miles per hour (kn to mph)

1 kn ≈ 1.15078 mph. Type any value to convert it.

1 knot =

1.150779448 mph

miles per hour

Conversion factor
1 kn ≈ 1.150779448 mph

Fix the highlighted field to update the result.

Show in all common units
1 kn in other units
UnitValue
meter per second (m/s)0.5144444444 m/s
kilometer per hour (km/h)1.852 km/h
mile per hour (mph)1.150779448 mph
knot (kn)1 kn
foot per second (ft/s)1.687809857 ft/s

How to convert knots to miles per hour

1 kn ≈ 1.15078 mph

1 knot = 1,852 m per hour exactly (international nautical mile, NIST Handbook 44), so 1 kn = 1,852 ÷ 1,609.344 mph, about 1.150779 mph.

Examples

  • 96 kn = 110.47483 mph: Lowest Category 3 hurricane wind speed (NOAA National Hurricane Center)
  • 34 kn = 39.126501 mph: Lower bound of a Beaufort force 8 gale (Met Office)
  • 10 kn = 11.507794 mph: A sailboat's cruising speed

Knots to mph chart

Knots to miles per hour
Knots (kn)Miles per hour (mph)
1 kn1.1507794 mph
2 kn2.3015589 mph
3 kn3.4523383 mph
4 kn4.6031178 mph
5 kn5.7538972 mph
10 kn11.507794 mph
15 kn17.261692 mph
20 kn23.015589 mph
25 kn28.769486 mph
34 kn39.126501 mph
50 kn57.538972 mph
75 kn86.308459 mph
96 kn110.47483 mph
100 kn115.07794 mph

Common mistakes

  • "Knots per hour" is wrong: a knot already means nautical miles per hour.

Frequently asked questions

How many mph is 1 knot?

About 1.151 mph. A knot is one nautical mile per hour, and the international nautical mile is exactly 1,852 m.

What is 64 knots in mph?

About 73.6 mph. The National Hurricane Center starts Category 1 at 64 kt and lists it as 74 mph.

Is multiplying knots by 1.15 accurate enough?

Yes, for most uses. The Met Office suggests 1.15; it is about 0.07% below the exact factor of 1.150779.