How to use scientific calculator
Use a full scientific keypad for arithmetic, degree-based trigonometry, inverse trig, powers, roots, logarithms, percentages and factorials with an input-safe parser. Work out a quick total without opening another application.
- Enter the numbers, dates or units you want to compare.
- Choose the calculation options and calculate.
- Review the result together with the assumptions shown.
Try this next
Enter 1200 * (1 - 15 / 100) to calculate a price after a 15% reduction.
Trigonometric functions use degrees (DEG), and inverse trig returns degrees. tan(90) is undefined. % divides by 100; mod gives a remainder. Results display up to 12 significant digits.
Questions, answered.
Is scientific calculator free to use?
Yes. This tool is part of Nepocore’s free browser toolkit. There is no paid tier, file-download gate or application account required.
What should I check before using the result?
Trigonometric functions use degrees (DEG), and inverse trig returns degrees. tan(90) is undefined. % divides by 100; mod gives a remainder. Results display up to 12 significant digits.
Does this tool upload my files or text?
The tool processes its input in your browser. File contents and text are not sent to a processing server. See the privacy page for local storage and hosting details.