To solve this problem, divide by the number of millimeters in an inch to get the fraction of an inch expressed as a decimal.

One inch is 2.54 centimeters, or 25.4 millimeters.

If you divide 1.5 by 25.4, the result is 0.059, or 59 thousandths of an inch.

One inch is 2.54 centimeters, or 25.4 millimeters.

If you divide 1.5 by 25.4, the result is 0.059, or 59 thousandths of an inch.