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Scientific Calculator

Everything a school or university course needs, with keyboard input and a running history.

Free, no sign-up. Runs in your browser: nothing is uploaded.

How to use Scientific Calculator

  1. Type an expression or use the buttons.
  2. Press = or Enter.
  3. Reuse earlier answers from the history.

Features

  • sin, cos, tan and inverses
  • log, ln, powers and roots
  • Degrees or radians
  • π, e and Ans
  • Keyboard support

Private by design

Everything you type is calculated by your browser on this device. Nothing is sent to openWorkstand or anyone else, so the Scientific Calculator is safe for private and work data, and it keeps working offline once the page has loaded. How local processing works

When to use the Scientific Calculator

  • Solve trigonometry homework.
  • Do quick engineering calculations.
  • Check logarithms and powers.

Frequently asked questions

Is it really free?

Yes. There is no sign-up, no watermark, no daily limit and no paid plan. openWorkstand is paid for by a few ads on its public pages.

Keep working with the result

openWorkstand also includes a free workspace with documents, spreadsheets, tasks, projects and a calendar that save to a folder on your computer.