How Do You Find The Square Mm Of A Rectangle?

How Do You Find The Square Mm Of A Rectangle? There are 645.16 square millimeters in 1 square inch. To convert from square inches to square millimeters, multiply your figure by 645.16 (or divide by 0.0015500031000062) . How do you find the m2 of a rectangle? To calculate a rectangular room’s area in square meters,