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A notepad calculator that reads plain text and gives instant answers as you type, free on Mac, iOS, Windows, Linux, Android and Web.
About
Notes Calculator
Notes Calculator is a notepad calculator that reads plain text. Type your calculations as ordinary notes and the answers appear instantly as you type, with no need to switch between a text editor and a separate calculator.
It supports variables, more than 200 currencies and unit conversion, so you can mix numbers, words and units in the same document and keep everything readable.
Notes Calculator is free and available on Mac, iOS, Windows, Linux, Android and the Web.
Updated October 1, 2026Community
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