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.