Kilometers per Hour to Miles per Hour Conversion (km/h to mph) (2024)

Enter the speed in kilometers per hour below to get the value converted to miles per hour.

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Result in Miles per Hour:

Kilometers per Hour to Miles per Hour Conversion (km/h to mph) (1)

1 km/h = 0.621371 mph

Do you want to convert miles per hour to kilometers per hour?

How to Convert Kilometers per Hour to Miles per Hour

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Kilometers per Hour to Miles per Hour Conversion (km/h to mph) (2)

Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.

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Cite As:

Sexton, J. (n.d.). Kilometers per Hour to Miles per Hour Converter. Inch Calculator. Retrieved June 19, 2024, from https://www.inchcalculator.com/convert/kilometer-per-hour-to-mile-per-hour/

The fastest way to convert kilometers per hour to miles per hour is to use this simple formula:

mph = km/h ÷ 1.609344

The speed in miles per hour is equal to the speed in kilometers per hour divided by 1.609344.Since one kilometer per hour is equal to 1.609344 miles per hour,[1] that's the conversion ratio used in the formula.

For example, here's how to convert 5 kilometers per hour to miles per hour using the formula above.

mph = (5 km/h ÷ 1.609344) = 3.106856 mph

Kilometers per Hour to Miles per Hour Conversion (km/h to mph) (3)

Kilometers per hour and miles per hour are both units used to measure speed.Calculate speed in kilometers per hour or miles per hour using our speed calculator or keep reading to learn more about each unit of measure.

What Are Kilometers per Hour?

Kilometers per hour are a measurement of speed expressing the distance traveled in kilometers in one hour.

The kilometer per hour, or kilometre per hour, is an SI unit of speed in the metric system. Kilometers per hour can be abbreviated as km/h, and are also sometimes abbreviated as kph. For example, 1 kilometer per hour can be written as 1 km/h or 1 kph.

In the expressions of units, the slash, or solidus (/), is used to express a change in one or more units relative to a change in one or more other units.[2] For example, km/h is expressing a change in length or distance relative to a change in time.

Kilometers per hour can be expressed using the formula:
vkm/h = dkm / thr

The velocity in kilometers per hour is equal to the distance in kilometers divided by time in hours.

Learn more about kilometers per hour.

What Are Miles per Hour?

Miles per hour are a measurement of speed expressing the distance traveled in miles in one hour.[3]

The mile per hour is a US customary and imperial unit of speed. Miles per hour can be abbreviated as mph, and are also sometimes abbreviated as mi/h or MPH. For example, 1 mile per hour can be written as 1 mph, 1 mi/h, or 1 MPH.

Miles per hour can be expressed using the formula:
vmph = dmi / thr

The velocity in miles per hour is equal to the distance in miles divided by time in hours.

Learn more about miles per hour.

Kilometer per Hour to Mile per Hour Conversion Table

Kilometer per hour measurements converted to miles per hour
Kilometers Per HourMiles Per Hour
1 km/h0.62 mph
2 km/h1.24 mph
3 km/h1.86 mph
4 km/h2.49 mph
5 km/h3.11 mph
10 km/h6.21 mph
15 km/h9.32 mph
20 km/h12.43 mph
25 km/h15.53 mph
30 km/h18.64 mph
35 km/h21.75 mph
40 km/h24.85 mph
45 km/h27.96 mph
50 km/h31.07 mph
55 km/h34.18 mph
60 km/h37.28 mph
65 km/h40.39 mph
70 km/h43.5 mph
75 km/h46.6 mph
80 km/h49.71 mph
85 km/h52.82 mph
90 km/h55.92 mph
95 km/h59.03 mph
100 km/h62.14 mph
105 km/h65.24 mph
110 km/h68.35 mph
115 km/h71.46 mph
120 km/h74.56 mph
125 km/h77.67 mph
130 km/h80.78 mph
135 km/h83.89 mph
140 km/h86.99 mph
145 km/h90.1 mph
150 km/h93.21 mph
155 km/h96.31 mph
160 km/h99.42 mph

References

  1. National Institute of Standards and Technology, NIST Guide to the SI, https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b8
  2. National Institute of Standards and Technology, NIST Guide to the SI, Chapter 6: Rules and Style Conventions for Printing and Using Units, https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-6-rules-and-style-conventions-printing-and-using
  3. Wikipedia, Miles per hour, https://en.wikipedia.org/wiki/Miles_per_hour

More Kilometer per Hour & Mile per Hour Conversions

  • kilometers per hour to knots
  • kilometers per hour to Mach number
  • kilometers per hour to speed of sound
  • kilometers per hour to speed of light
  • kilometers per hour to feet per second
  • kilometers per hour to kilometers per second
  • kilometers per hour to meters per second
  • kilometers per hour to centimeters per second
  • knots to miles per hour
  • Mach number to miles per hour
  • speed of sound to miles per hour
  • speed of light to miles per hour
  • feet per second to miles per hour
  • kilometers per second to miles per hour
  • meters per second to miles per hour
  • centimeters per second to miles per hour
Kilometers per Hour to Miles per Hour Conversion (km/h to mph) (2024)

FAQs

Kilometers per Hour to Miles per Hour Conversion (km/h to mph)? ›

Since 1 Mile is = 1.6 kms , to convert KM to Miles quickly , multiply KM with 0.6 and e.g: You are doing 80 KM / Hr ,multiplying 80 with 0.6 = 48 , So you are doing approximately 48 Miles / Hr. Simple.

How do you convert kilometers per mile to miles per hour? ›

To convert kilometres per hour to miles per hour, multiply the speed in km/h by 0.621371. This factor is derived from the exact equivalence of one mile to 1.60934 kilometres. How many MPH in 1 KPH? There are approximately 0.621371 miles per hour in 1 kilometre per hour.

How to convert km/m to mph? ›

Multiply the speed in km/min with 60, (which gives us the distance we drive/run in km /hr). Divide this distance with the length of a mile in km (1 mile =1,60934 km). This gives us the speed in miles per hour.

What is the equation for mph to km h? ›

Multiply by 1.60934 (the kilometer equivalent).

Once you have the correct speed in miles per hour, you can convert it to kilometers by multiplying it by 1.60934. For the example of 95MPH, 95 x 1.60934 = 152.887KPH.

How fast is 50 km in miles per hour? ›

To convert kilometers per hour (KPH) to miles per hour (MPH), you can use the formula KPH * 0.62. For example, if the speed is 50 KPH, 50 * 0.62 equals approximately 31 MPH.

How do you convert mph to KM? ›

To convert miles per hour to kilometres per hour, multiply the speed value in mph by 1.60934.

What is the mph formula? ›

That is speed = distance ÷ time. Or to put it another way distance divided by speed will give you the time. Provided you know two of the inputs you can work out the third. For example if a car travels for 2 hours and covers 120 miles we can work out speed as 120 ÷ 2 = 60 miles per hour.

How do you convert km to speed? ›

We know that 1 kilometer = 1000 meters and 1 hour = 3600 seconds. Now, 1 km/h can also be written as 1000/3600: 1 (kilometer/hour) = 1000/3600 (meters/seconds). So, this is the formula which is used to convert km/h to m/s.

How do you solve for km h? ›

How to calculate average speed. Speed is distance divided by time. Simply put, if you drove 60 kilometres for one hour, it would look like this: Speed = distance (60 km) / time (1 hour) = 60km/h.

Is 100 km 60 mph? ›

Answer: 100 km/h is equal to 62.14 mph

You can refer metric conversion chart for easy calculations and more clarity.

How many loters are in a gallon? ›

3.78541 L

How fast is 100 mph in kilometers? ›

100 miles is equivalent to approximately 160.93 kilometers per hour. To convert miles to kilometers per hour, you can use the following conversion factor: 1 mile is approximately equal to 1.60934 kilometers. This calculation shows that 100 miles per hour is equivalent to approximately 160.93 kilometers per hour.

What is the fastest way to convert KPH to mph? ›

To convert from kilometers per hour to miles per hour, divide the measurement in kmph by 1.609344 to get the equivalent in mph.

How fast is 100 km per mile in miles per hour? ›

Answer: 100 km/h is equal to 62.14 mph

So, 100 km/h is equal to 62.14 miles per hour.

What is 200km in mph? ›

200 km/hr (kilometers per hour) = 124 mph ( 124 miles per hour ).

How much is 40 km in mph? ›

To convert the speed from kilometers per hour to miles per hour (MPH), we use the conversion factor that 1 kilometer is approximately equal to 0.621371 miles. Therefore, to convert 40 kilometers per hour to MPH, we multiply by this factor: 40 km/h × 0.621371 = 24.8548 MPH.

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