At One Place

Miles per hour to knots

1 mile per hour in knots
1 mph = 0.86898 kn
kn = mph × 0.8689762419

To convert miles per hour to knots, multiply by 0.8689762419. The table below gives the values people look up most often, and the converter works for any number.

Miles per hour to knots table

Common mile per hour values converted to knots.
Miles per hour Knots
1 mph 0.86898
2 mph 1.737952
3 mph 2.606929
4 mph 3.475905
5 mph 4.344881
10 mph 8.689762
15 mph 13.03464
20 mph 17.37952
25 mph 21.72441
30 mph 26.06929
40 mph 34.75905
50 mph 43.44881
75 mph 65.17322
100 mph 86.89762
250 mph 217.2441
500 mph 434.4881
1,000 mph 868.9762

How the conversion works

The relationship is kn = mph × 0.8689762419. Both units measure speed, so the conversion is a fixed factor that never changes.

Common questions

How many knots are in one mile per hour?
One mile per hour equals 0.86898 knots. kn = mph × 0.8689762419.
How do you convert miles per hour to knots?
Use kn = mph × 0.8689762419. So 10 mph is 8.689762 kn.
How many miles per hour are in one knot?
One knot equals 1.150779 miles per hour, which is the reverse of the conversion above.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked