Conversion formula

The conversion factor from inches to centimeters is 2.54, which means that 1 inch is equal to 2.54 centimeters:

1 in = 2.54 cm

To convert 0.4 inches into centimeters we have to multiply 0.4 by the conversion factor in order to get the length amount from inches to centimeters. We can also form a simple proportion to calculate the result:

1 in → 2.54 cm

0.4 in → L_(cm)

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

L_(cm) = 0.4 in × 2.54 cm

L_(cm) = 1.016 cm

The final result is:

0.4 in → 1.016 cm

We conclude that 0.4 inches is equivalent to 1.016 centimeters:

0.4 inches = 1.016 centimeters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 centimeter is equal to 0.98425196850394 × 0.4 inches.

Another way is saying that 0.4 inches is equal to 1 ÷ 0.98425196850394 centimeters.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that zero point four inches is approximately one point zero one six centimeters:

0.4 in ≅ 1.016 cm

An alternative is also that one centimeter is approximately zero point nine eight four times zero point four inches.

Conversion table

inches to centimeters chart

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