Convert knot to foot per second

1 kn = 1.687809857 ft/s

sig figs

1 kn = 1.69 ft/s

1 kn in every speed unit

millimeter per year	16,200,000,000 mm/yr
millimeter per day	44,400,000 mm/day
millimeter per hour	1,850,000 mm/h
inch per day	1,750,000 in/day
foot per day	146,000 ft/d
inch per hour	72,900 in/h
meter per day	44,400 m/d
millimeter per minute	30,900 mm/min
meter per hour	1,850 m/h
inch per minute	1,220 in/min
millimeter per second	514 mm/s
foot per minute	101 ft/min
centimeter per second	51.4 cm/s
meter per minute	30.9 m/min
inch per second	20.3 in/s
kilometer per hour	1.85 km/h
foot per second	1.69 ft/s
mile per hour	1.15 mph
knot	1 kn
meter per second	0.514 m/s
mach (sea level)	0.00151 Ma
kilometer per second	0.000514 km/s
speed of light	1.72e-09 c

How the conversion works

Multiply by 1.687809857 to go from knot to foot per second, or divide by it to go back. Every conversion on this site routes through the SI value (m/s) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.

Going the other way? foot per second to knot: 1 ft/s = 0.5924838013 kn.

knot to foot per second: common values

1 kn	1.6878099 ft/s
2 kn	3.3756197 ft/s
3 kn	5.0634296 ft/s
5 kn	8.4390493 ft/s
10 kn	16.878099 ft/s
15 kn	25.317148 ft/s
20 kn	33.756197 ft/s
25 kn	42.195246 ft/s
50 kn	84.390493 ft/s
75 kn	126.58574 ft/s
100 kn	168.78099 ft/s
250 kn	421.95246 ft/s
500 kn	843.90493 ft/s
1000 kn	1,687.8099 ft/s

Other speed conversions

m/s → ft/s km/h → ft/s mph → ft/s kn → m/s kn → km/h kn → mph kn → ft/min ft/min → ft/s

All speed units →

Solvers that use speed