It’s Good to Know: How to Measure Things Without a Ruler

When you don’t have a ruler handy, use one of the following to estimate sizes:

  • a credit card (3-3/8" x 1-1/8")
  • a standard business card (3-1/2" x 2")
  • a dollar bill (6-1/8" x 2-5/8")
  • a quarter (approximately 1" in diameter) or a penny (approximately 3/4")
  • a standard sheet of paper (8-1/2" x 11")

(Source: The New York Public Library Desk Reference)

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