I assume you are talking about inches. There are 25.4 millimetres in an inch. i.e. there are 0.0254 millimetres in a thousandth of an inch. 0.0254*7 gives you 0.1778 millimetres.

Millimeters - equal to a thousandth of a meter. Millimeters - equal to a thousandth of a meter. Millimeters - equal to a thousandth of a meter. Millimeters - equal to a thousandth of a meter.

In every thousandth of an inch you have 0.0254 millimetres. So to convert to millimetres you multiply by 0.0254. To convert mm to thousandths of an inch you divide by 0.0254.

There are 25.4 millimeters in an inch. To convert millimeters into inches, divide millimeters by 25.4. To convert inches into millimeters, multiply inches by 25.4.

A millimeter is one one-thousandth of a meter. Ten millimeters equals one centimeter. One thousand millimeters equals one meter. It is roughly the thickness of a paperclip. It is the smallest measurement on a normal ruler. One inch is 25.4 millimeters.

There are 25.4 centimeters in one inch. Therefore to get amount of millimeters in inches, value in inches has to be multiplied by amount of millimeters in one inch: 1 inch = [inches] * 25.4 = 1 * 25.4 = 25.4 millimeters