# Square millimeters to square inches (sq mm to sq in)

area conversions » square millimeter conversions » sq mm to sq in## Square millimeters to square inches conversion table (chart)

The conversion table to the right is a default, short version of the square millimeters to square inches conversion table. You also have an option to create the square millimeters to square inches conversion table for the specific values you need. You can choose the initial value (in square millimeters), the increment and the number of rows you want to show up in the conversion table.To create your customized square millimeters to square inches conversion table, click on the 'create conversion table' button.

square millimeter (sq mm) | square inch (sq in) |

10 | 0.015500031000062 |

20 | 0.031000062000124 |

30 | 0.046500093000186 |

40 | 0.062000124000248 |

50 | 0.07750015500031 |

60 | 0.093000186000372 |

70 | 0.10850021700043 |

80 | 0.1240002480005 |

## Conversion Formula

By using the online converter calculator on this page, you can calculate how many square inches are in 'X' square millimeters (X is the number of square millimeters you want to convert to square inches). In order to convert a value from square millimeters to square inches (from sq mm to sq in) simply type the number of square millimeters to be converted to square inches and then click on the 'convert' button. The formula used for converting a specific value from square millimeters to square inches is:

X square millimeters * cf = Y square inches

where

X = the specific value to be converted (in square millimeters)

cf = the conversion factor from square millimeters to square inches

Y = the result (in square inches)

*Example*

Let's suppose that you have a value of area of 703 square millimeters and want to express it in square inches.

703 sq mm = (703 × 0.0015500031000062) sq in

703 sq mm = 1.0896521793044 sq in

## Conversion factor

1 square millimeter is equal to 0.0015500031000062 square inch

(1 sqmm = 0.0015500031000062 sqin )

## Related topics

- To convert from square millimeters to any other area/surface unit, go to convert from square millimeters
- To convert from a unit of area other than square millimeter, go to all area conversions
- If you want to do the reverse unit conversion from
**square inches to square millimeters**, go to convert square inches to square millimeters