scientific calculator
Trig, logarithms, powers, constants β all in your browser β 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) |
| β / β | Square / cube root |
| xΒ² / xΒ³ | Square / cube |
| xΚΈ | Enter base β xΚΈ β exponent β = |
| eΛ£ / 10Λ£ | Exponential functions |
| Ο / e | Constants 3.14159β¦ / 2.71828β¦ |
| |x| | Absolute value |
| n! | Factorial (up to 170) |
| 1/x | Reciprocal |
| M+ Mβ 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 xΚΈ (power)?
Enter the base number, press xΚΈ, enter the exponent, then press =. Example: 2 β xΚΈ β 8 β = 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, + β * /, Enter (=), Backspace (delete), Escape (AC) all work from your keyboard.
Is my data stored?
No β all calculations happen locally in your browser. Nothing is uploaded or saved.