Double Square Millimeter (abbreviations: mm4, or mm 4): is the SI derived unit of area moment of inertia, a geometrical property of an area which reflects how its points are distributed with regard to an arbitrary axis.
Double Square Inch (abbreviations: in4, or in 4): is a unit in the (British) imperial and United States customary systems of measurement of area moment of inertia, a geometrical property of an area which reflects how its points are distributed with regard to an arbitrary axis.
How to Convert Double Square Millimeters to Double Square Inches
Example: How many double square inches are equivalent to 16.87 double square millimeters?
As;
1 double square millimeters = 2.4024903900096E-6 double square inches
16.87 double square millimeters = Y double square inches
Assuming Y is the answer, and by criss-cross principle;
Y equals 16.87 times 2.4024903900096E-6 over 1
(i.e.) Y = 16.87 * 2.4024903900096E-6 / 1 = 4.0530012879462E-5 double square inches
Answer is: 4.0530012879462E-5 double square inches are equivalent to 16.87 double square millimeters.
Practice Question: Convert the following units into in4:
N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.
( i ) 14.84 mm4
( ii ) 24.71 mm4
( iii ) 80.27 mm4
