## Conversion formula

The conversion factor from kilometers per hour to meters per second is 0.277777777778, which means that 1 kilometer per hour is equal to 0.277777777778 meters per second:

1 km/h = 0.277777777778 m/s

To convert 640 kilometers per hour into meters per second we have to multiply 640 by the conversion factor in order to get the velocity amount from kilometers per hour to meters per second. We can also form a simple proportion to calculate the result:

1 km/h → 0.277777777778 m/s

640 km/h → V(m/s)

Solve the above proportion to obtain the velocity V in meters per second:

V(m/s) = 640 km/h × 0.277777777778 m/s

V(m/s) = 177.77777777792 m/s

The final result is:

640 km/h → 177.77777777792 m/s

We conclude that 640 kilometers per hour is equivalent to 177.77777777792 meters per second:

640 kilometers per hour = 177.77777777792 meters per second ## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 meter per second is equal to 0.0056249999999955 × 640 kilometers per hour.

Another way is saying that 640 kilometers per hour is equal to 1 ÷ 0.0056249999999955 meters per second.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred forty kilometers per hour is approximately one hundred seventy-seven point seven seven eight meters per second:

640 km/h ≅ 177.778 m/s

An alternative is also that one meter per second is approximately zero point zero zero six times six hundred forty kilometers per hour.

## Conversion table

### kilometers per hour to meters per second chart

For quick reference purposes, below is the conversion table you can use to convert from kilometers per hour to meters per second

kilometers per hour (km/h) meters per second (m/s)
641 kilometers per hour 178.056 meters per second
642 kilometers per hour 178.333 meters per second
643 kilometers per hour 178.611 meters per second
644 kilometers per hour 178.889 meters per second
645 kilometers per hour 179.167 meters per second
646 kilometers per hour 179.444 meters per second
647 kilometers per hour 179.722 meters per second
648 kilometers per hour 180 meters per second
649 kilometers per hour 180.278 meters per second
650 kilometers per hour 180.556 meters per second