The image below represents square miles to square inches.

To convert square miles to square inches, one essential parameter is needed and this parameter is **Unit Value.**

The formula for converting square miles to square inches:

1 Square Mile = 401489600 Square Inches

Let’s solve an example;

Find the conversion of square miles to square inches when the unit value is 14.

1 Square Mile = 401489600 Square Inches

Then,

14 Square Miles = (14 x 401489600) Square Inches

14 Square Miles = 56202854400 Square Inches

Therefore, the **square inch(es) **is **56202854400.**