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 266 miles per hour into kilometers per hour we have to multiply 266 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

266 mph → V_(km/h)

Solve the above proportion to obtain the velocity V in kilometers per hour:

V_(km/h) = 266 mph × 1.6093439999987 km/h

V_(km/h) = 428.08550399966 km/h

The final result is:

266 mph → 428.08550399966 km/h

We conclude that 266 miles per hour is equivalent to 428.08550399966 kilometers per hour:

266 miles per hour = 428.08550399966 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 0.0023359819257061 × 266 miles per hour.

Another way is saying that 266 miles per hour is equal to 1 ÷ 0.0023359819257061 kilometers per hour.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that two hundred sixty-six miles per hour is approximately four hundred twenty-eight point zero eight six kilometers per hour:

266 mph ≅ 428.086 km/h

An alternative is also that one kilometer per hour is approximately zero point zero zero two times two hundred sixty-six 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