Calculating column inches

To determine how much to charge a customer for an ad in a newspaper, a general role in the charges column inch. column inch is a unit of measurement that expresses the amount of one page of an ad will take up. the size of a column inch may vary from one role to another, depending on the size of paper used and the number of printed columns.

 
Step 1

Count the number of columns of advertising fills the entire page. the size of a column can vary from paper to paper.
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Step 2

Measure the length of the page that holds the column in inches from top to bottom.

Step 3

Multiply the number of columns in the number of inches down to find the number of column inches. For example, if the announcement of measures 3 columns wide and 4 inches down, you would multiply 3 by 4 to find the announcement, up to 12 column inches.