scientific calculator
Trig, logarithms, powers, constants — all in your browser — no sign-up.
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All calculations run entirely in your browser. No data is uploaded or stored. Keyboard supported: numbers, operators, Enter, Backspace, Escape.
Quick reference
| sin / cos / tan | Trig functions (degree or radian) |
| INV + sin/cos/tan | Inverse (arc) trig functions |
| log | Base-10 logarithm |
| ln | Natural log (base e) |
| √ / ∛ | Square / cube root |
| x² / x³ | Square / cube |
| xʸ | Enter base → xʸ → exponent → = |
| eˣ / 10ˣ | Exponential functions |
| π / e | Constants 3.14159… / 2.71828… |
| |x| | Absolute value |
| n! | Factorial (up to 170) |
| 1/x | Reciprocal |
| M+ M− MR MC MS | Memory functions |
Angle mode
Switch between Degrees and Radians before using sin, cos, or tan. The active mode is highlighted blue.
INV mode
Press INV to switch sin/cos/tan to their arc (inverse) equivalents. The INV button highlights when active.
FAQ
How do I use xʸ (power)?
Enter the base number, press xʸ, enter the exponent, then press =. Example: 2 → xʸ → 8 → = gives 256.
Why does sin(90) show 0.9999...?
Floating-point rounding. The result is effectively 1. Make sure Degrees mode is active, not Radians.
Keyboard shortcuts?
Numbers, + − * /, Enter (=), Backspace (delete), Escape (AC) all work from your keyboard.
Is my data stored?
No — all calculations happen locally in your browser. Nothing is uploaded or saved.