back-of-the-envelope

adjective

: done quickly to provide a rough estimate : not exact
did a back-of-the-envelope calculation
His method is, in effect, a back-of-the-envelope time-and-motion study.Ian Stewart

Examples of back-of-the-envelope in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
To the contrary, the vast, vast, vast majority of rides are without incident, and though there’s no rigorous way to compare underground to above ground, a back-of-the-envelope analysis suggests the former is actually safer than the latter. New York Daily News Editorial Board, New York Daily News, 27 Dec. 2024 The remaining amount — somewhere around $500 million, based on my back-of-the-envelope calculation — deserves careful scrutiny. David Greising, Chicago Tribune, 6 Dec. 2024 Our back-of-the-envelope analysis puts the median age of the cable MNF base at around 48 years, while ABC’s is about 57 years. Anthony Crupi, Sportico.com, 6 Dec. 2024 At a price of $30 per month per user, back-of-the-envelope math equates to $3.6 million annually for 10,000 employees. Eric Rosenbaum, CNBC, 29 Oct. 2024 Precise figures are tricky to obtain but, according to a back-of-the-envelope calculation by Inogwabini, just a few dozen of the perhaps 300 scientists publishing on conservation topics related to the Congo Basin are from the DRC itself. Byemmet Livingstone, science.org, 3 Oct. 2024 Since the Treasury re-introduced the 20-year bond in monthly auctions four years ago, their sale has tacked on roughly $2 billion a year in interest expenses on top of what the government would have otherwise paid, a simple back-of-the-envelope calculation shows. Lila MacLellan, Fortune, 8 Aug. 2024 Maybe the dollars don’t line up as cleanly for the Big Ten Network as our back-of-the-envelope math suggests. Jon Wilner, The Mercury News, 17 July 2024 The problem with this kind of back-of-the-envelope math is that Musk’s assumptions can be off by orders of magnitude. Phil Wahba, Fortune, 3 July 2024

Word History

First Known Use

1968, in the meaning defined above

Time Traveler
The first known use of back-of-the-envelope was in 1968

Dictionary Entries Near back-of-the-envelope

Cite this Entry

“Back-of-the-envelope.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/back-of-the-envelope. Accessed 23 Jan. 2025.

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