Millimeter (abbreviation: mm): is a unit of length in the SI metric system, equal to one thousandth of a metre. Therefore, there are thousand millimetres in a metre and ten millimetres in a centimetre.
Inch (abbreviation: in): is a unit of length in the (British) imperial and United States customary systems of measurement now formally equal to 1/36 yard but usually taken as 1/12 of a foot.
How to Convert Millimeters to Inches
Example: How many inches are equivalent to 27.69 millimeters?
As;
1 millimeters = 0.03937 inches
27.69 millimeters = Y inches
Assuming Y is the answer, and by criss-cross principle;
Y equals 27.69 times 0.03937 over 1
(i.e.) Y = 27.69 * 0.03937 / 1 = 1.0901553 inches
Answer is: 1.0901553 inches are equivalent to 27.69 millimeters.
Practice Question: Convert the following units into in:
N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.
( i ) 38.61 mm
( ii ) 92.88 mm
( iii ) 26.47 mm
