Q:

How many inches are in 12 millimeters?

A:

Twelve millimeters is equal to 0.472 inch. An inch is defined as exactly 25.4 millimeters by the system of imperial units as well as the system of U.S. customary units.

The word "inch" comes from the Latin word "uncia," which means one-twelfth part. The word "ounce" also originated from the same word. An inch is abbreviated as "in.", and is denoted by either "in." or a double prime. A double prime is approximated by a double quotation mark, which means that 5 inches can be written as 5".

There are 12 inches in a foot, and feet are denoted by a single prime, approximated by an apostrophe. So if a person is 5 feet 6 inches tall, it's written as 5'6". The inch was first defined by the British Weights and Measures Act of 1824, and it was used as a part of a system of units that are known as the imperial system. The imperial system originated from the pre-1824 system known as "English units."

Although the British Weights and Measures Act of 1824 was scheduled to go into effect May 1, 1825, it was not implemented until Jan. 1, 1826. Since 1824, it has been refined and reduced several times.


Is this answer helpful?

Similar Questions

  • Q:

    What is 95 millimeters in inches?

    A:

    Ninety-five millimeters is equal to approximately 3.7 inches. The unit conversion from millimeters to inches is done by multiplying the value for millimeters by .03937 and then rounding the result to the appropriate significant figures. Ninety-five multiplied by .03937 is 3.74015, which is then rounded to two significant figures, giving a value of 3.7.

    Full Answer >
    Filed Under:
  • Q:

    What does 10 millimeters equal in inches?

    A:

    Ten millimeters is equal to approximately .39 inches. Millimeters are a much smaller unit than inches.

    Full Answer >
    Filed Under:
  • Q:

    How many millimeters is 1 centimeter?

    A:

    One centimeter is equal to 10 millimeters. It is also equal to 0.1 decimeter and 0.01 meter. One kilometer contains 100,000 centimeters. Millimeters, decimeters, centimeters, meters and kilometers are all units of length in the metric system.

    Full Answer >
    Filed Under:
  • Q:

    How many inches is 18mm?

    A:

    Eighteen millimeters is equal to approximately 0.70866 inches. Each millimeter is equal to 0.039370 inches. To convert between millimeters to inches, simply multiply the value in millimeters by 0.039370 to obtain the value in inches.

    Full Answer >
    Filed Under:

Explore