No install, no signup
Open a tab, run the calculation, close the tab. No download, no account, no permissions prompts.
Always up to date
Web calculators get bug fixes and new features automatically. You don't have to track app versions or worry about outdated firmware.
Works everywhere
A browser-based calculator runs on your phone, laptop, school Chromebook, or work desktop with no per-platform install. The same URL works for everyone.
Local-first privacy
With client-side calculation, your numbers stay on your device. My Calculator Monkey never transmits the values you type.
My Calculator Monkey
A free online calculator collection — financial, health, math, and everyday calculators in one place.
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