What measurement uses 6 picas per inch to determine column width?

• A. Inches
• B. Pixels
• C. Points
• D. Picas

Answer: (D)

In typography, column width is often measured in picas because the pica fits neatly into layout grids. There are six picas in one inch, and one pica equals 12 points, so inch-based measurements and font sizes align smoothly in print design. This relationship makes picas a practical unit for sizing columns and blocks of text in a consistent way across pages. Inches describe physical length, points are used for font size, and pixels are a screen-based unit, so they don’t provide the same convenient grid for column widths. That’s why the measurement used to determine column width is picas.