How many centimeters are in 6.405 kilometers?

Question

Just the question

Answer 1

1 kilometer is 1000 meters, so 6.405 km = (6.405 km)*(1000 m/km) = 6405 meters

 

1 meter = 100 centimeters, so 6405 m = (6405 m)*(100 cm/m) = 640,500 cm

Answer 2

Joseph,

 

The easiest way to answer this is by using unit analysis as shown below:

 

6.405 kilometers l  1000 meters l  100 centimeters    = 640,500 centimeters

                            l  1 kilometer   l   1 meter

 

 

Using unit analysis, continue to use the conversion factors until you get the final units needed.  In this case, we are going from kilometers to centimeters.

 

 

Good luck!

 

Art B.

Answer 3

640,500 centimeters