Formula
kn to ft/s conversion formula
Use this relationship for a direct conversion:
ft/s = kn x 1.687809857101
Worked example
2 kn = 3.3756197142 ft/s.
All listed factors are fixed by exact length and time definitions.
Speed conversion
Convert Knot to Foot per second
1 knot (kn) equals 1.687809857101 foot per second (ft/s). Enter any value below to convert from kn to ft/s.
Enter a value and choose units. Results update instantly.
1 kn = 1.6878098571 ft/s
All Speed units
From 1 kn| Unit | Value |
|---|---|
| Meter per second m/s | 0.5144444444 |
| Kilometer per hour km/h | 1.852 |
| Mile per hour mph | 1.150779448 |
| Knot kn | 1 |
| Foot per second ft/s | 1.6878098571 |
| Centimeter per second cm/s | 51.4444444444 |
| Speed of light c | 0.0000000017 |
Recent conversions
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Quick reference
Knot to Foot per second table
| Knot (kn) | Foot per second (ft/s) |
|---|---|
| 0.01 | 0.0168780986 |
| 0.1 | 0.1687809857 |
| 1 | 1.6878098571 |
| 2 | 3.3756197142 |
| 5 | 8.4390492855 |
| 10 | 16.878098571 |
| 25 | 42.1952464275 |
| 50 | 84.3904928551 |
| 100 | 168.7809857101 |
| 1,000 | 1,687.8098571012 |
From unit
About the knot
One nautical mile per hour.
Symbol: kn
To unit
About the foot per second
One international foot traveled in one second.
Symbol: ft/s
Keep converting
Related conversions
Source
Conversion standard
Definitions are checked against BIPM SI Brochure and international unit definitions. Calculations use full internal precision before display rounding.
View the complete speed converterQuestions
kn to ft/s FAQ
How do you convert knot to foot per second?
Use the formula ft/s = kn x 1.687809857101. 1 knot (kn) equals 1.687809857101 foot per second (ft/s).
Is the kn to ft/s conversion exact?
Both unit definitions use exact factors. Only the displayed decimal may be rounded.