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Conversion

Miles per Hour to Knots Converter

1 mile per hour = 0.8689762419 kn. Enter any value to convert miles per hour (mph) to knots (kn), or use the table below for common values.

Results

1 mph =0.8689762419 knmiles per hour → knots
1 mph0.8689762419 kn
1 kn1.150779448 mph
Formula
kn = mph × 0.8689762419
1 mph in other units
UnitValue
kilometers per hour (km/h)1.609344
meters per second (m/s)0.44704
feet per second (ft/s)1.466666667
knots (kn)0.8689762419

Formula

kn = mph × 0.8689762419

Example: 10 mph = 8.689762419 kn. To convert the other way, use mph = kn × 1.150779448.

Quick mental estimate: multiply by about 0.87.

Miles per Hour to Knots conversion table

Miles per Hour (mph)Knots (kn)
1 mph0.8689762419 kn
5 mph4.34488121 kn
10 mph8.689762419 kn
20 mph17.37952484 kn
30 mph26.06928726 kn
40 mph34.75904968 kn
50 mph43.4488121 kn
60 mph52.13857451 kn
70 mph60.82833693 kn
80 mph69.51809935 kn
90 mph78.20786177 kn
100 mph86.89762419 kn
120 mph104.277149 kn
150 mph130.3464363 kn
200 mph173.7952484 kn
300 mph260.6928726 kn

About miles per hour and knots

Miles per hour is the road speed unit in the United States and the United Kingdom.

The knot is one nautical mile per hour (exactly 1.852 km/h), used in aviation, sailing and marine weather forecasts.

Other Speed conversions

Knots → Miles per HourReverse conversionKilometers per Hour → Knotskm/h → knMiles per Hour → Kilometers per Hourmph → km/hMiles per Hour → Meters per Secondmph → m/sMiles per Hour → Feet per Secondmph → ft/sMeters per Second → Knotsm/s → knFeet per Second → Knotsft/s → kn

Frequently asked questions

How do I convert miles per hour to knots?

Use the formula kn = mph × 0.8689762419. For example, 10 mph = 8.689762419 kn.

What is 1 mile per hour in knots?

1 mph = 0.8689762419 kn.

How do I convert knots back to miles per hour?

Use mph = kn × 1.150779448. 1 kn = 1.150779448 mph.