Idiom: Back-of-the-envelope calculation

What does 'Back-of-the-envelope calculation' mean?

A back of the envelope calculation is a figure that was arrived at quickly or by using estimation--as if someone had grabbed the first scrap of paper they found and made a quick guess.

  • Category: General
  • Contributed By: Amanda

Idioms similar to 'Back-of-the-envelope calculation'

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