Scientific Calculator
Full scientific calculator — trig, log, exp, memory
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M: 0 DEG
📚 Learn more — how it works, FAQ & guide Click to expand
Learn more — how it works, FAQ & guide
Click to expand
Free scientific calculator — complete math functions
Toololis Scientific Calculator has all the functions you need: basic arithmetic, trigonometry (sin, cos, tan + inverse), logarithms (log, ln), exponents, square root, factorial, pi, e, parentheses, memory. Works keyboard-first.
How to use this tool
- 1
Type or click buttons
Enter numbers + operators. Use keyboard or tap buttons.
- 2
Use scientific functions
sin, cos, tan, log, ln, sqrt, powers, pi, e — all one tap away.
- 3
Review history
Previous calculations stay visible. Click to reuse a result.
Frequently Asked Questions
Degrees or radians?
Toggle with the DEG/RAD button (top-right). Affects trig functions.
Memory functions?
M+ adds to memory, M- subtracts, MR recalls, MC clears.
Keyboard shortcuts?
0-9 digits, + - * / operators, Enter to calculate, Backspace to delete, Esc to clear.
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100% Privacy. This tool runs entirely in your browser. Your data is never uploaded to any server.