168.781
ft/s
51.4444
m/s
115.0779
mph
185.2
km/h
10,126.86
ft/min
168.781
ft/s
51.4444
m/s
115.0779
mph
185.2
km/h
10,126.86
ft/min
The Knots to Feet per Second Converter provides precise knots to feet per second conversion for aviation approach speeds, ballistics, and engineering.
1 knot = 1.68781 ft/s Understanding this conversion is important for scientists, engineers, pilots, and enthusiasts working in fields that require accurate speed measurement and conversion across different scales.
Our converter uses internationally standardized conversion factors, ensuring results are accurate and reliable. Simply enter your value and receive instant results in multiple related units.
1 knot = 1.68781 ft/s = 1.15078 mph = 0.514444 m/s. Derived from 1 nautical mile = 6076.12 ft, so 1 knot = 6076.12/3600 = 1.68781 ft/s.
The results use standard conversion factors. Note that Mach number and speed of sound depend on atmospheric conditions (temperature, pressure, humidity). Values shown use standard sea-level conditions at 20°C unless otherwise noted.
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Results
Default value conversion.
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Results
Scaled-up conversion.
1 knot = 1.68781 ft/s.
Aircraft approach speeds and stall speeds are given in knots. Converting to ft/s helps calculate descent rates and runway distances.
120 knots = 202.5 ft/s — typical light aircraft approach speed.
10 knots = 16.878 ft/s — light breeze or slow boat speed.
1 nautical mile = 6,076.12 feet = 1,852 meters.
All conversions use standard definitions. Mach and speed-of-sound conversions assume standard atmospheric conditions (20°C at sea level).
Yes, simply use the inverse formula or look for the reverse converter in our collection.
This conversion is commonly used in aviation approach speeds, ballistics, and engineering.
Metric and distance-based conversions are exact. Temperature-dependent conversions (Mach, speed of sound) use standard conditions.
Conversion factors are from NIST, BIPM, ICAO, and ISO standards.
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