Mile (abbreviation: mi): is an English unit of length of distance equal to 5,280 feet, or 1,760 yards, and standardised as exactly 1,609.344 metres by international agreement in 1959.
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.
How to Convert Miles to Millimeters
Example: How many millimeters are equivalent to 17.88 miles?
As;
1 miles = 1609344 millimeters
17.88 miles = Y millimeters
Assuming Y is the answer, and by criss-cross principle;
Y equals 17.88 times 1609344 over 1
(i.e.) Y = 17.88 * 1609344 / 1 = 28775070.72 millimeters
Answer is: 28775070.72 millimeters are equivalent to 17.88 miles.
Practice Question: Convert the following units into mm:
N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.
( i ) 44.13 mi
( ii ) 16.4 mi
( iii ) 39.6 mi