## Conversion formula

The conversion factor from inches to millimeters is 25.4, which means that 1 inch is equal to 25.4 millimeters:

1 in = 25.4 mm

To convert 1.2 inches into millimeters we have to multiply 1.2 by the conversion factor in order to get the length amount from inches to millimeters. We can also form a simple proportion to calculate the result:

1 in → 25.4 mm

1.2 in → L(mm)

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

L(mm) = 1.2 in × 25.4 mm

L(mm) = 30.48 mm

The final result is:

1.2 in → 30.48 mm

We conclude that 1.2 inches is equivalent to 30.48 millimeters:

1.2 inches = 30.48 millimeters

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 millimeter is equal to 0.032808398950131 × 1.2 inches.

Another way is saying that 1.2 inches is equal to 1 ÷ 0.032808398950131 millimeters.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that one point two inches is approximately thirty point four eight millimeters:

1.2 in ≅ 30.48 mm

An alternative is also that one millimeter is approximately zero point zero three three times one point two inches.

## Conversion table

### inches to millimeters chart

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

inches (in) millimeters (mm)
2.2 inches 55.88 millimeters
3.2 inches 81.28 millimeters
4.2 inches 106.68 millimeters
5.2 inches 132.08 millimeters
6.2 inches 157.48 millimeters
7.2 inches 182.88 millimeters
8.2 inches 208.28 millimeters
9.2 inches 233.68 millimeters
10.2 inches 259.08 millimeters
11.2 inches 284.48 millimeters