Unit Converter
Conversion formula
The conversion factor from miles per hour to kilometers per hour is 1.6093439999987, which means that 1 mile per hour is equal to 1.6093439999987 kilometers per hour:
1 mph = 1.6093439999987 km/h
To convert 42 miles per hour into kilometers per hour we have to multiply 42 by the conversion factor in order to get the velocity amount from miles per hour to kilometers per hour. We can also form a simple proportion to calculate the result:
1 mph → 1.6093439999987 km/h
42 mph → V(km/h)
Solve the above proportion to obtain the velocity V in kilometers per hour:
V(km/h) = 42 mph × 1.6093439999987 km/h
V(km/h) = 67.592447999946 km/h
The final result is:
42 mph → 67.592447999946 km/h
We conclude that 42 miles per hour is equivalent to 67.592447999946 kilometers per hour:
42 miles per hour = 67.592447999946 kilometers per hour
Alternative conversion
We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer per hour is equal to 0.014794552196139 × 42 miles per hour.
Another way is saying that 42 miles per hour is equal to 1 ÷ 0.014794552196139 kilometers per hour.
Approximate result
For practical purposes we can round our final result to an approximate numerical value. We can say that forty-two miles per hour is approximately sixty-seven point five nine two kilometers per hour:
42 mph ≅ 67.592 km/h
An alternative is also that one kilometer per hour is approximately zero point zero one five times forty-two miles per hour.
Conversion table
miles per hour to kilometers per hour chart
For quick reference purposes, below is the conversion table you can use to convert from miles per hour to kilometers per hour
miles per hour (mph) | kilometers per hour (km/h) |
---|---|
43 miles per hour | 69.202 kilometers per hour |
44 miles per hour | 70.811 kilometers per hour |
45 miles per hour | 72.42 kilometers per hour |
46 miles per hour | 74.03 kilometers per hour |
47 miles per hour | 75.639 kilometers per hour |
48 miles per hour | 77.249 kilometers per hour |
49 miles per hour | 78.858 kilometers per hour |
50 miles per hour | 80.467 kilometers per hour |
51 miles per hour | 82.077 kilometers per hour |
52 miles per hour | 83.686 kilometers per hour |