Q:

# What is 20 millimeters in inches?

A:

Twenty millimeters is the equivalent of 25/32 of an inch or approximately 0.79 inches. One millimeter is about 3/64 of an inch or about 0.039 inches. Twenty millimeters also equals 2 centimeters.

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The millimeter and the centimeter are units of length in the metric system, a system of measurement based on units of 10. Other units in this system are the meter, which is equal to 1,000 millimeters, and the decimeter, which is equal to 100 millimeters.

The inch is a U.S. customary unit of length based on the imperial system of measurement, a system used primarily in the United States. Other units in this system are the foot, which equals 12 inches, and the yard, which equals 36 inches.

## Related Questions

• A:

A centimeter is the equivalent of 25/64 inch, and 3 centimeters is the equivalent of 1 3/16 inches. Centimeters are the smallest unit of the metric system, which is a widely used measurement system that has been adopted around the globe. The United States is the only industrialized nation in the world that has yet to adopt the metric system as its own, although it was officially sanctioned for use in 1866.

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• A:

The equivalent of 1 inch in the metric system is 2.54 centimeters. To convert a height, h, in inches to centimeters, solve the equation x centimeters = (h inches) (2.54 centimeters/1 inch). Since the inches are cancelled out, the new equation is x centimeters = (h) (2.54) centimeters.

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• A:

The equivalent of 140 millimeters is 5.51 inches. That number can be determined either by directly converting from millimeters to inches, or by first converting the millimeters to centimeters, and then converting the centimeters to inches.