What is 70 km in mph?
Understand the Problem
The question is asking us to convert a speed given in kilometers per hour (km/h) into miles per hour (mph). The conversion between the two units involves using the conversion factor where 1 kilometer is approximately equal to 0.621371 miles.
Answer
43.50 mph
Answer for screen readers
The final answer is 43.50 mph
Steps to Solve
- Identify the conversion factor between kilometers and miles
We are given that 1 kilometer $ ext{(km)}$ is approximately equal to 0.621371 miles $ ext{(miles)}$.
- Set up the conversion
Multiply the speed in kilometers per hour by the conversion factor to convert to miles per hour.
If $70 ext{ km/h}$ is the speed in kilometers per hour (km/h), we use the conversion factor to find:
$$70 ext{ km/h} imes 0.621371 rac{ ext{miles}}{ ext{km}}$$
- Perform the multiplication
Calculate the product to get the speed in miles per hour (mph):
$$70 imes 0.621371 = 43.49797$$
- Round the answer
Typically, we round to two decimal places for speed conversions, so:
$$43.49797 ext{ mph} ightarrow 43.50 ext{ mph}$$
The final answer is 43.50 mph
More Information
It's interesting to know that speed limits in the U.S. are primarily measured in miles per hour (mph), whereas many other countries use kilometers per hour (km/h).
Tips
A common mistake is to not use the precise conversion factor (0.621371). Make sure to use the exact conversion factor to get an accurate result.
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