To convert 1.18 inch to millimeter, multiply 1.18 by the conversion factor 25.400000. The calculation is 1.18 × 25.400000 = 29.9720 millimeter.

1.18 inch equals exactly 29.972000 millimeter. For practical applications, this is often presented as 29.9720 millimeter.

Objects measuring approximately 1.18 inch include the length of an M.2 2230 SSD module (1.18 inch / 30 mm), the diameter of a US Half Dollar coin (1.205 inch / 30.61 mm), and the length of a 3d common nail (1.25 inch / 31.75 mm).

Converting inch to millimeter is essential for international compatibility in manufacturing, engineering, and scientific research. It ensures precision in design, facilitates global trade, and aligns with the metric system, which is the standard in most countries.

A simple memory aid is to remember that 1 inch is approximately 25.4 millimeters. For 1.18 inch, you can quickly estimate it as slightly less than 1.2 inches, which is roughly 30 millimeters. Visualizing a US Half Dollar coin (about 1.2 inches) as approximately 30 millimeters can also help.