Math & Science

Significant Figures & Scientific Notation

Count significant figures, round to any number of them, and convert to scientific, E and engineering notation. Free, no sign-up, and it runs in your browser — your files are never uploaded.

How to use

  1. Type a number
  2. See which digits are significant
  3. Round it and copy it in scientific or engineering notation

Questions

Do I need an account?

No. Every tool is free to use without signing up.

Is my data uploaded?

No. This tool runs in your browser, so the text and files you use stay on your device.

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