ready reckoner

American  

noun

1. reckoner.

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ready reckoner British  

noun

1. a table of numbers used to facilitate simple calculations, esp one for applying rates of discount, interest, charging, etc, to different sums

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Etymology

Origin of ready reckoner

First recorded in 1750–60

Example Sentences

Alongside a new "ready reckoner" tool, allowing farms to calculate how much they might be offered, Irranca-Davies announced £33m for nine preparatory schemes to " back farm businesses during the transition to the new SFS".

From BBC • Jul. 20, 2025

He never opened a book, save a manual of husbandry or a ready reckoner; he could conceive of no reason for walking, unless it were the business of the farm.

From In Clive's Command A Story of the Fight for India by Strang, Herbert

Fritz was the ready reckoner of the three, and quickly answered, "Twelve hundred horses, six hundred wagons, and six hundred drivers."

From Pixy's Holiday Journey by Lang, George

Also she was somethin' of a ready reckoner.

From Side-stepping with Shorty by Ford, Sewell

Thomas system ready reckoner 500 cribbage. © on text & other copyrightable elements; 13Jan34; AA141617.

From U.S. Copyright Renewals, 1961 July - December by Library of Congress. Copyright Office