Conversion formula

The conversion factor from kilometers to centimeters is 100000, which means that 1 kilometer is equal to 100000 centimeters:

1 km = 100000 cm

To convert 688 kilometers into centimeters we have to multiply 688 by the conversion factor in order to get the length amount from kilometers to centimeters. We can also form a simple proportion to calculate the result:

1 km → 100000 cm

688 km → L_(cm)

Solve the above proportion to obtain the length L in centimeters:

L_(cm) = 688 km × 100000 cm

L_(cm) = 68800000 cm

The final result is:

688 km → 68800000 cm

We conclude that 688 kilometers is equivalent to 68800000 centimeters:

688 kilometers = 68800000 centimeters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 centimeter is equal to 1.453488372093E-8 × 688 kilometers.

Another way is saying that 688 kilometers is equal to 1 ÷ 1.453488372093E-8 centimeters.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred eighty-eight kilometers is approximately sixty-eight million eight hundred thousand centimeters:

688 km ≅ 68800000 cm

An alternative is also that one centimeter is approximately zero times six hundred eighty-eight kilometers.

Conversion table

kilometers to centimeters chart

For quick reference purposes, below is the conversion table you can use to convert from kilometers to centimeters