Conversion formula

The conversion factor from millimeters to inches is 0.039370078740157, which means that 1 millimeter is equal to 0.039370078740157 inches:

1 mm = 0.039370078740157 in

To convert 1220 millimeters into inches we have to multiply 1220 by the conversion factor in order to get the length amount from millimeters to inches. We can also form a simple proportion to calculate the result:

1 mm → 0.039370078740157 in

1220 mm → L_(in)

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

L_(in) = 1220 mm × 0.039370078740157 in

L_(in) = 48.031496062992 in

The final result is:

1220 mm → 48.031496062992 in

We conclude that 1220 millimeters is equivalent to 48.031496062992 inches:

1220 millimeters = 48.031496062992 inches

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 inch is equal to 0.020819672131148 × 1220 millimeters.

Another way is saying that 1220 millimeters is equal to 1 ÷ 0.020819672131148 inches.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that one thousand two hundred twenty millimeters is approximately forty-eight point zero three one inches:

1220 mm ≅ 48.031 in

An alternative is also that one inch is approximately zero point zero two one times one thousand two hundred twenty millimeters.

Conversion table

millimeters to inches chart

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