## Conversion formula

The conversion factor from feet per second to kilometers per hour is 1.0972799999991, which means that 1 foot per second is equal to 1.0972799999991 kilometers per hour:

1 ft/s = 1.0972799999991 km/h

To convert 681 feet per second into kilometers per hour we have to multiply 681 by the conversion factor in order to get the velocity amount from feet per second to kilometers per hour. We can also form a simple proportion to calculate the result:

1 ft/s → 1.0972799999991 km/h

681 ft/s → V(km/h)

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

V(km/h) = 681 ft/s × 1.0972799999991 km/h

V(km/h) = 747.2476799994 km/h

The final result is:

681 ft/s → 747.2476799994 km/h

We conclude that 681 feet per second is equivalent to 747.2476799994 kilometers per hour:

681 feet per second = 747.2476799994 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 0.0013382443689899 × 681 feet per second.

Another way is saying that 681 feet per second is equal to 1 ÷ 0.0013382443689899 kilometers per hour.

## Approximate result

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

681 ft/s ≅ 747.248 km/h

An alternative is also that one kilometer per hour is approximately zero point zero zero one times six hundred eighty-one feet per second.

## Conversion table

### feet per second to kilometers per hour chart

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

feet per second (ft/s) kilometers per hour (km/h)
682 feet per second 748.345 kilometers per hour
683 feet per second 749.442 kilometers per hour
684 feet per second 750.54 kilometers per hour
685 feet per second 751.637 kilometers per hour
686 feet per second 752.734 kilometers per hour
687 feet per second 753.831 kilometers per hour
688 feet per second 754.929 kilometers per hour
689 feet per second 756.026 kilometers per hour
690 feet per second 757.123 kilometers per hour
691 feet per second 758.22 kilometers per hour