Convert 21 Knots to Kilometers per Hour

How fast is 21 knots? What is 21 knots in kilometers per hour? 21 knots to km/h conversion.
Amount
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21 Knots =
38.892 Kilometers per Hour
exact result
Decimal places
Result in Plain English
21 knots is equal to about 38.9 kilometers per hour.
Result as a Fraction
21 knots
= 9,723⁄250 kilometers per hour
= 38 and 223⁄250 kilometers per hour
In Scientific Notation
21 knots
= 2.1 x 101 knots
= 3.8892 x 101 kilometers per hour
Knots
A knot is a unit of speed, equal to one nautical mile per hour. Something traveling at one knot is going about 1.151 land miles per hour.
Common abbreviations: kn, kt
Kilometers per Hour
A kilometer per hour is a unit of speed. Something traveling at one kilometer per hour is traveling about 0.278 meters per second, or about 0.621 miles per hour.
Common abbreviations: km/h, kmph, km/hr, km/hour
Knots to Kilometers per Hour Conversions
results may be rounded
knots km/h
21.00 38.892
21.01 38.911
21.02 38.929
21.03 38.948
21.04 38.966
21.05 38.985
21.06 39.003
21.07 39.022
21.08 39.040
21.09 39.059
21.10 39.077
21.11 39.096
21.12 39.114
21.13 39.133
21.14 39.151
21.15 39.170
21.16 39.188
21.17 39.207
21.18 39.225
21.19 39.244
21.20 39.262
21.21 39.281
21.22 39.299
21.23 39.318
21.24 39.336
21.25 39.355
21.26 39.374
21.27 39.392
21.28 39.411
21.29 39.429
21.30 39.448
21.31 39.466
21.32 39.485
21.33 39.503
knots km/h
21.34 39.522
21.35 39.540
21.36 39.559
21.37 39.577
21.38 39.596
21.39 39.614
21.40 39.633
21.41 39.651
21.42 39.670
21.43 39.688
21.44 39.707
21.45 39.725
21.46 39.744
21.47 39.762
21.48 39.781
21.49 39.799
21.50 39.818
21.51 39.837
21.52 39.855
21.53 39.874
21.54 39.892
21.55 39.911
21.56 39.929
21.57 39.948
21.58 39.966
21.59 39.985
21.60 40.003
21.61 40.022
21.62 40.040
21.63 40.059
21.64 40.077
21.65 40.096
21.66 40.114
21.67 40.133
knots km/h
21.68 40.151
21.69 40.170
21.70 40.188
21.71 40.207
21.72 40.225
21.73 40.244
21.74 40.262
21.75 40.281
21.76 40.300
21.77 40.318
21.78 40.337
21.79 40.355
21.80 40.374
21.81 40.392
21.82 40.411
21.83 40.429
21.84 40.448
21.85 40.466
21.86 40.485
21.87 40.503
21.88 40.522
21.89 40.540
21.90 40.559
21.91 40.577
21.92 40.596
21.93 40.614
21.94 40.633
21.95 40.651
21.96 40.670
21.97 40.688
21.98 40.707
21.99 40.725
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