To convert millimeters (mm) to inches, you can use the following conversion factor: 1 inch = 25.4 mm.
Here’s how you can convert 3 mm to inches:
1. Write down the given value: 3 mm
2. Multiply the given value by the conversion factor: 3 mm x (1 inch / 25.4 mm) = 0.11811 inches
3. Round off the answer to the appropriate number of decimal places: 0.11811 inches is approximately equal to 0.12 inches
Real-life example:
Let’s say you have a piece of paper that measures 150 mm in length. To convert this measurement to inches, you would use the conversion factor: 1 inch = 25.4 mm.
150 mm x (1 inch / 25.4 mm) = 5.90551 inches
Therefore, the length of the paper is approximately 5.91 inches.
FAQs:
1. Why do we need to convert units?
Converting units allows us to express measurements in different systems for easier comparison and understanding.
2. Can I convert units without using a conversion factor?
No, a conversion factor is necessary to accurately convert units from one system to another.
3. Is there a simple way to remember common conversion factors?
One common mnemonic device is “King Henry Died By Drinking Chocolate Milk” which stands for Kilo, Hecto, Deca, Base, Deci, Centi, Milli – the prefixes used in the metric system.
4. How can I check if my conversion is correct?
You can double-check your conversion by using an online unit converter or by performing the calculation again to ensure accuracy.