Centimeters are metric units of measurement. The basic unit of length in the metric system is the meter, and a centimeter represents one-hundredth of a meter. In terms of U.S. measurements, it takes 2.54 cm to make 1 inch. If you are measuring an object, you might want to round your measurement to the nearest centimeter. In some cases, this means rounding up, which means to round the measurement to the next largest whole number in terms of centimeters.
Instructions
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1
Measure an object with a ruler that has centimeter markings. If the object falls between two whole numbers, look at the fractional markings between the numbers. The ruler can be marked in fourths, halves or even 10ths.
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2
Write down the measurement. For instance, you might have an object that is 5-1/2 cm.
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3
Round the measurement up to the next whole number. In this example, you would round 5-1/2 to 6 cm.