To convert millimeters (mm) to inches, you can use the following formula:
1 inch = 25.4 millimeters
So, to convert 18mm to inches, you would divide 18 by 25.4:
18 mm ÷ 25.4 = 0.70866 inches
Therefore, 18mm is approximately equal to 0.70866 inches.
Real-life example:
Let’s say you have a piece of paper that measures 210mm in length. To convert this measurement to inches, you would divide 210 by 25.4:
210 mm ÷ 25.4 = 8.26772 inches
Therefore, a piece of paper that measures 210mm in length is approximately equal to 8.26772 inches.
FAQs:
1. Why do we need to convert units?
Converting units allows us to easily compare measurements in different systems and make calculations more convenient. It also helps in standardizing measurements for consistency.
2. Can I convert units using a calculator?
Yes, you can use a calculator to convert units by simply dividing the value in one unit by the conversion factor to get the equivalent value in the other unit.
3. Is there a shortcut to convert units without using a calculator?
One common shortcut is to remember that 1 inch is approximately equal to 25mm. So, you can estimate conversions by dividing the value in millimeters by 25 to get a rough estimate in inches.