Conversion formula

The conversion factor from milliliters to deciliters is 0.01, which means that 1 milliliter is equal to 0.01 deciliters:

1 ml = 0.01 dL

To convert 400 milliliters into deciliters we have to multiply 400 by the conversion factor in order to get the volume amount from milliliters to deciliters. We can also form a simple proportion to calculate the result:

1 ml → 0.01 dL

400 ml → V_(dL)

Solve the above proportion to obtain the volume V in deciliters:

V_(dL) = 400 ml × 0.01 dL

V_(dL) = 4 dL

The final result is:

400 ml → 4 dL

We conclude that 400 milliliters is equivalent to 4 deciliters:

400 milliliters = 4 deciliters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 deciliter is equal to 0.25 × 400 milliliters.

Another way is saying that 400 milliliters is equal to 1 ÷ 0.25 deciliters.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that four hundred milliliters is approximately four deciliters:

400 ml ≅ 4 dL

An alternative is also that one deciliter is approximately zero point two five times four hundred milliliters.

Conversion table

milliliters to deciliters chart

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