At One Place

Knots to feet per second

1 knot in feet per second
1 kn = 1.68781 ft/s
ft/s = kn × 1.687809857

To convert knots to feet per second, multiply by 1.687809857. The table below gives the values people look up most often, and the converter works for any number.

Knots to feet per second table

Common knot values converted to feet per second.
Knots Feet per second
1 kn 1.68781
2 kn 3.37562
3 kn 5.06343
4 kn 6.751239
5 kn 8.439049
10 kn 16.8781
15 kn 25.31715
20 kn 33.7562
25 kn 42.19525
30 kn 50.6343
40 kn 67.51239
50 kn 84.39049
75 kn 126.5857
100 kn 168.781
250 kn 421.9525
500 kn 843.9049
1,000 kn 1,687.8099

How the conversion works

The relationship is ft/s = kn × 1.687809857. Both units measure speed, so the conversion is a fixed factor that never changes.

Common questions

How many feet per second are in one knot?
One knot equals 1.68781 feet per second. ft/s = kn × 1.687809857.
How do you convert knots to feet per second?
Use ft/s = kn × 1.687809857. So 10 kn is 16.8781 ft/s.
How many knots are in one foot per second?
One foot per second equals 0.59248 knots, 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