Free Online Scientific Calculator
This scientific calculator works directly in your browser — no download, no app, no account needed. It supports all standard scientific functions including trigonometry, logarithms, exponents, square roots, memory functions, and a full history of recent calculations. Use it for algebra homework, engineering problems, physics calculations, or any math that goes beyond basic arithmetic.
Available Functions
| Button | Function | Example |
|---|---|---|
| sin / cos / tan | Trigonometric functions (degrees) | sin(30) = 0.5 |
| log | Logarithm base 10 | log(1000) = 3 |
| ln | Natural logarithm (base e) | ln(e) = 1 |
| x² | Square the displayed number | 5² = 25 |
| √ | Square root | √(144) = 12 |
| xʸ | Power/exponent | 2^10 = 1024 |
| 1/x | Reciprocal | 1/4 = 0.25 |
| π | Pi constant (3.14159...) | π × r² |
| % | Percentage | 200 × 15% = 30 |
| MS/MR/M+/MC | Memory store, recall, add, clear | Save intermediate results |