# Convert 100 kilometers per hour to miles per hour

How many miles per hour are 100 kilometers per hour?

kilometers per hour (km/h)
100 kilometers per hour = 62.137 miles per hour

## Precise decimal and fraction answers

The conversion in miles per hour rounded to six significant decimal places is 100 km/h = 62.137119 mph. The precise fraction answer is 62 99/722 mph.

### Decimal Precision

Conversion from one to ten decimal places

• 100 km/h = 62.1 mph
• 100 km/h = 62.14 mph
• 100 km/h = 62.137 mph
• 100 km/h = 62.1371 mph
• 100 km/h = 62.13712 mph
• 100 km/h = 62.137119 mph
• 100 km/h = 62.1371192 mph
• 100 km/h = 62.13711922 mph
• 100 km/h = 62.137119224 mph
• 100 km/h = 62.1371192237 mph

## How many miles per hour is a kilometer per hour?

A kilometer per hour is slower than a mile per hour. 0.621 miles per hour is the same velocity as one kilometer per hour. A kilometer per hour is 62.14% the velocity a mile per hour. An object moving at a mile per hour is 60.93% faster than an object traveling at one kilometer per hour.

## Kilometers per hour to miles per hour conversion factor and formulas

Formula

The conversion factor between kilometers per hour and miles per hour is 1.609. This represents the ratio of kilometers per hour per one mile per hour. To calculate the value in miles per hour, we can either divide by the conversion factor or multiply by its inverse.

### Division

To convert from kilometers per hour to miles per hour, divide kilometers per hour by 1.609.
The formula is expressed as:
km/h ÷ 1.609 = mph

### Multiplication

Alternatively we can multiply by the inverse conversion factor to get the same result.
The inverse of 1.609 is 1/1.609 or 0.621. To convert from kilometers per hour to miles per hour, multiply kilometers per hour by 0.621.
The formula is expressed as:
km/h × 0.621 = mph

To convert 100 kilometers per hour to miles per hour, divide 100 kilometers per hour by 1.609.
100 km/h ÷ 1.609 = 62.137 mph

## How fast are 100 kilometers per hour?

Real world scale examples to visualize the velocity of 100 kilometers per hour / 62.137 miles per hour

• 1.68 times the typical speed of a racehorse (37 mph)
• 89% of the typical automobile speed on a highway (70 mph)
• 31% of the typical speed of modern high speed train (200 mph)

Converting kilometers per hour to miles per hour is a conversion between units from separate unit systems - kilometers per hour are metric (SI) defined units while miles per hour are US Customary / UK Imperial .

SI Unit

Within the SI (metric) system of measurement, a kilometer per hour (km/h) is the distance traveled in one hour as measured in kilometers (1,000 meters). It is commonly used as measurement of velocity over geographic distances. Kilometers per hour are commonly used to measure vehicle speed and speed limits. The official SI symbol is km/h, however kph and km/hr are also used.

Customary/Imperial Unit

Miles per hour is a velocity measurement within the US/UK Imperial systems. It is defined as the number of miles traveled in one hour. MPH is frequently used for measurement and regulation of vehicle speed limits in the US, UK and many British dependencies. The common symbols for miles per hour are mph, MPH or mi/hr.

## Reverse this conversion

Convert from miles per hour to kilometers per hour instead.

## 100 kilometers per hour to other speed units

### Metric

• 100 km/h = 100 km/h

### Imperial/U.S.

• 100 km/h = 62.137 mph
• 100 km/h = 53.996 kn

## References and Citations

1. International Bureau of Weights and Measures (BIPM) The International System of Units (SI)
2. National Institute of Standards and Technology (NIST) General Tables of Units of Measurement

## Decimal conversions for 100 km/h to mph

km/h mph
100.01 km/h 62.143 mph
100.02 km/h 62.15 mph
100.03 km/h 62.156 mph
100.04 km/h 62.162 mph
100.05 km/h 62.168 mph
100.06 km/h 62.174 mph
100.07 km/h 62.181 mph
100.08 km/h 62.187 mph
100.09 km/h 62.193 mph
100.1 km/h 62.199 mph
100.11 km/h 62.205 mph
100.12 km/h 62.212 mph
100.13 km/h 62.218 mph
100.14 km/h 62.224 mph
100.15 km/h 62.23 mph
100.16 km/h 62.237 mph
100.17 km/h 62.243 mph
100.18 km/h 62.249 mph
100.19 km/h 62.255 mph
100.2 km/h 62.261 mph
100.21 km/h 62.268 mph
100.22 km/h 62.274 mph
100.23 km/h 62.28 mph
100.24 km/h 62.286 mph
100.25 km/h 62.292 mph
100.26 km/h 62.299 mph
100.27 km/h 62.305 mph
100.28 km/h 62.311 mph
100.29 km/h 62.317 mph
100.3 km/h 62.324 mph
100.31 km/h 62.33 mph
100.32 km/h 62.336 mph
100.33 km/h 62.342 mph
100.34 km/h 62.348 mph
100.35 km/h 62.355 mph
100.36 km/h 62.361 mph
100.37 km/h 62.367 mph
100.38 km/h 62.373 mph
100.39 km/h 62.379 mph
100.4 km/h 62.386 mph
100.41 km/h 62.392 mph
100.42 km/h 62.398 mph
100.43 km/h 62.404 mph
100.44 km/h 62.411 mph
100.45 km/h 62.417 mph
100.46 km/h 62.423 mph
100.47 km/h 62.429 mph
100.48 km/h 62.435 mph
100.49 km/h 62.442 mph
100.5 km/h 62.448 mph
km/h mph
100.51 km/h 62.454 mph
100.52 km/h 62.46 mph
100.53 km/h 62.466 mph
100.54 km/h 62.473 mph
100.55 km/h 62.479 mph
100.56 km/h 62.485 mph
100.57 km/h 62.491 mph
100.58 km/h 62.498 mph
100.59 km/h 62.504 mph
100.6 km/h 62.51 mph
100.61 km/h 62.516 mph
100.62 km/h 62.522 mph
100.63 km/h 62.529 mph
100.64 km/h 62.535 mph
100.65 km/h 62.541 mph
100.66 km/h 62.547 mph
100.67 km/h 62.553 mph
100.68 km/h 62.56 mph
100.69 km/h 62.566 mph
100.7 km/h 62.572 mph
100.71 km/h 62.578 mph
100.72 km/h 62.585 mph
100.73 km/h 62.591 mph
100.74 km/h 62.597 mph
100.75 km/h 62.603 mph
100.76 km/h 62.609 mph
100.77 km/h 62.616 mph
100.78 km/h 62.622 mph
100.79 km/h 62.628 mph
100.8 km/h 62.634 mph
100.81 km/h 62.64 mph
100.82 km/h 62.647 mph
100.83 km/h 62.653 mph
100.84 km/h 62.659 mph
100.85 km/h 62.665 mph
100.86 km/h 62.671 mph
100.87 km/h 62.678 mph
100.88 km/h 62.684 mph
100.89 km/h 62.69 mph
100.9 km/h 62.696 mph
100.91 km/h 62.703 mph
100.92 km/h 62.709 mph
100.93 km/h 62.715 mph
100.94 km/h 62.721 mph
100.95 km/h 62.727 mph
100.96 km/h 62.734 mph
100.97 km/h 62.74 mph
100.98 km/h 62.746 mph
100.99 km/h 62.752 mph