Knot to Foot per second Converter
1 kn = 1.68781 ft/s — convert instantly with formula and table.
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Quick answer: one knot equals 1.6878 feet per second. So to convert knots to feet per second, multiply by 1.68780986.
How to convert knots to feet per second
feet per second = knots × 1.687809857
The knot — one nautical mile per hour — is the speed unit of ships, aircraft and wind. It ties neatly to navigation because one nautical mile is one minute of latitude.
Feet per second appears in ballistics, sports science and engineering specs — 88 ft/s is exactly 60 mph, a ratio American engineers memorize.
Knot to Foot per second conversion table
| Knot (kn) | Foot per second (ft/s) |
|---|---|
| 0.01 kn | 0.016878 ft/s |
| 0.1 kn | 0.168781 ft/s |
| 0.25 kn | 0.421952 ft/s |
| 0.4 kn | 0.675124 ft/s |
| 0.75 kn | 1.2659 ft/s |
| 1.25 kn | 2.1098 ft/s |
| 1.75 kn | 2.9537 ft/s |
| 2.5 kn | 4.2195 ft/s |
| 3.5 kn | 5.9073 ft/s |
| 4.5 kn | 7.5951 ft/s |
| 6 kn | 10.1269 ft/s |
| 8 kn | 13.5025 ft/s |
| 10 kn | 16.8781 ft/s |
| 12 kn | 20.2537 ft/s |
| 14 kn | 23.6293 ft/s |
| 16 kn | 27.005 ft/s |
| 18 kn | 30.3806 ft/s |
| 20 kn | 33.7562 ft/s |
| 24 kn | 40.5074 ft/s |
| 26 kn | 43.8831 ft/s |
| 30 kn | 50.6343 ft/s |
| 35 kn | 59.0733 ft/s |
| 45 kn | 75.9514 ft/s |
| 55 kn | 92.8295 ft/s |
| 65 kn | 109.7076 ft/s |
| 75 kn | 126.5857 ft/s |
| 85 kn | 143.4638 ft/s |
| 95 kn | 160.3419 ft/s |
| 110 kn | 185.6591 ft/s |
| 125 kn | 210.9762 ft/s |
| 175 kn | 295.3667 ft/s |
| 250 kn | 421.9525 ft/s |
| 350 kn | 590.7334 ft/s |
| 450 kn | 759.5144 ft/s |
| 600 kn | 1,012.69 ft/s |
| 750 kn | 1,265.86 ft/s |
| 900 kn | 1,519.03 ft/s |
| 1,500 kn | 2,531.71 ft/s |
| 2,500 kn | 4,219.52 ft/s |
| 10,000 kn | 16,878.1 ft/s |
Need the opposite direction? Use the Foot per second to Knot converter, or read our complete guide to speed conversions for every formula in one place.
Frequently asked questions
How many feet per second are in one knot?
One knot equals 1.6878 feet per second. Multiply any knot value by 1.68780986 to get feet per second.
What is 10 knots in feet per second?
10 knots equal 16.8781 feet per second (10 × 1.68781).
Is the knot to foot per second conversion exact?
The conversion factor used here (1.687809857) is based on the internationally agreed definitions of both units, so results are exact up to rounding of the final decimal places.
Is my data stored when I use this converter?
No. The conversion runs entirely in your browser with JavaScript — nothing you type is sent to a server, logged or stored.