Conversion formula

The conversion factor from centimeters to decimeters is 0.1, which means that 1 centimeter is equal to 0.1 decimeters:

1 cm = 0.1 dm

To convert 490 centimeters into decimeters we have to multiply 490 by the conversion factor in order to get the length amount from centimeters to decimeters. We can also form a simple proportion to calculate the result:

1 cm → 0.1 dm

490 cm → L_(dm)

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

L_(dm) = 490 cm × 0.1 dm

L_(dm) = 49 dm

The final result is:

490 cm → 49 dm

We conclude that 490 centimeters is equivalent to 49 decimeters:

490 centimeters = 49 decimeters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 decimeter is equal to 0.020408163265306 × 490 centimeters.

Another way is saying that 490 centimeters is equal to 1 ÷ 0.020408163265306 decimeters.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that four hundred ninety centimeters is approximately forty-nine decimeters:

490 cm ≅ 49 dm

An alternative is also that one decimeter is approximately zero point zero two times four hundred ninety centimeters.

Conversion table

centimeters to decimeters chart

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