Conversion formula

The conversion factor from inches to decimeters is 0.254, which means that 1 inch is equal to 0.254 decimeters:

1 in = 0.254 dm

To convert 25.4 inches into decimeters we have to multiply 25.4 by the conversion factor in order to get the length amount from inches to decimeters. We can also form a simple proportion to calculate the result:

1 in → 0.254 dm

25.4 in → L_(dm)

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

L_(dm) = 25.4 in × 0.254 dm

L_(dm) = 6.4516 dm

The final result is:

25.4 in → 6.4516 dm

We conclude that 25.4 inches is equivalent to 6.4516 decimeters:

25.4 inches = 6.4516 decimeters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 decimeter is equal to 0.15500031000062 × 25.4 inches.

Another way is saying that 25.4 inches is equal to 1 ÷ 0.15500031000062 decimeters.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that twenty-five point four inches is approximately six point four five two decimeters:

25.4 in ≅ 6.452 dm

An alternative is also that one decimeter is approximately zero point one five five times twenty-five point four inches.

Conversion table

inches to decimeters chart

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