When it comes to converting between units of speed, such as kilometers per hour (km/h) and miles per hour (mph), it’s important to know the conversion factor between the two units. In this case, the conversion factor is 1 km/h = 0.621371 mph.

## What is 100 km/h in mph?

To convert 100 km/h to mph, we simply need to multiply 100 by the conversion factor:

100 km/h * 0.621371 mph/km/h = 62.1371 mph

So, 100 km/h is equal to approximately 62.14 mph.

To better understand this calculation, let’s break it down step by step:

**Step 1: Write down the conversion factor**

As mentioned earlier, the conversion factor between kilometers per hour and miles per hour is 1 km/h = 0.621371 mph. We will use this conversion factor to convert 100 km/h to mph.

**Step 2: Write down the given speed in km/h**

In this case, we are given a speed of 100 km/h that we need to convert to mph.

**Step 3: Multiply the given speed by the conversion factor**

To convert the given speed from km/h to mph, we need to multiply it by the conversion factor of 0.621371 mph/km/h. This gives us:

100 km/h * 0.621371 mph/km/h = 62.1371 mph

**Step 4: Round the answer (if necessary)**

In most cases, it’s a good idea to round the answer to a reasonable number of decimal places. In this case, we have rounded the answer to two decimal places, giving us 62.14 mph.

So, to summarize: **100 km/h is equal to approximately 62.14 mph.**

## Conclusion

In conclusion, converting between different units of speed can be a bit tricky, but by knowing the conversion factor between the units and following a few simple steps, we can easily convert from kilometers per hour to miles per hour (or vice versa) with ease.

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