Speed Converter

How to use this tool

• Fill in the number of any one blank(km/h, mph, knots, m/min, ft/min, m/s or ft/s)
• The results of other units will be automatically calculated.
• If you want to know how it it calculated, we also provide the formula

Speed unit conversion formula

• 1 km/h = 0.621371192 mph
• 1 km/h = 0.539956803 knots
• 1 mph = 1.6093440006 km/h
• 1 mph = 0.868976242 knots
• 1 knots = 1.852 km/h
• 1 knots = 1.1507794479 mph
• 1 foot = 0.3048 meters
• 1 mile = 5280 feet
• 1 kilometer = 1000 meters
• 1 hour = 60 minutes = 3600 seconds

Kilometer per hour

The kilometer per hour is a unit of speed, expressing the number of kilometres travelled in one hour, km/h or kph are both abbreviations of kilometer per hour.

Miles per hour

Miles per hour (abbreviated mph, MPH or mi/h) is an imperial and United States customary unit of speed expressing the number of statute miles covered in one hour.

Knots

1 international knot = 1 nautical mile per hour. Although the unit knot does not fit within the SI system, its retention for nautical and aviation use is important because the length of a nautical mile, upon which the knot is based, is closely related to the longitude/latitude geographic coordinate system. As a result, nautical miles and knots are convenient units to use when navigating an aircraft or ship.

If you drive at 100 km/h, how far will you move in a second ?

1 km = 1000 m
100 km = 100 × 1000 m = 100000 m
1 hour = 60 minutes = 60 × 60 seconds = 3600 seconds
100 km/h = 100000 m ÷ 3600 sec. = 27.77777777777778 m/sec.
Answer : approximately 28 meters.

When you drive at 60 mph, blink your eyes. What is the distance you move ?

One eye blink lasts about 0.3 seconds
1 mile = 5280 ft
60 miles = 60 × 5280 ft = 316800 ft
1 hour = 60 minutes = 60 × 60 seconds = 3600 seconds
60 mph = 316800 ft ÷ 3600 sec. = 88 ft/s
88 ft/s × 0.3 sec = 26.4 ft
Answer : when you blink, you will move 26 feet

Speed Converter

• kph to mph : convert km/h to mph and knots.
• speed converter : convert km/h, mph, knots, m/min, ft/min, m/s or ft/s.

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