Calculator
A responsive calculator supporting basic arithmetic, scientific functions (sin, cos, tan, log, sqrt, power), parentheses, and a running history of past calculations. Keyboard-friendly with instant evaluation.
Instant Results
Runs entirely in your browser
Privacy First
No data leaves your device
Free Forever
No signup or payment required
About Calculator
## Calculator Modes
### Standard
Basic arithmetic: addition, subtraction, multiplication, and division with proper operator precedence.
### Scientific
Extended functions available:
| Function | Description |
|----------|-------------|
| **sin / cos / tan** | Trigonometric functions (degrees) |
| **ln** | Natural logarithm |
| **log** | Base-10 logarithm |
| **√** | Square root |
| **x²** | Square |
| **xʸ** | Power |
| **π** | Pi constant (3.14159…) |
| **e** | Euler's number (2.71828…) |
### Tips
- Use **parentheses** to control evaluation order
- Press **Enter** or **=** to evaluate
- Press **Escape** or **C** to clear
- Press **Backspace** to delete the last character
- Full calculation history is kept during the session
Why Use VTX Labs?
Related Tools
Chmod Calculator
Calculate Unix file permissions — toggle checkboxes or type the octal/symbolic value.
Percentage Calculator
Calculate percentage of, change, difference, and add/subtract percentages from values.
Unit Converter
Convert between 100+ units across length, weight, area, volume, speed, temperature, and digital storage.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal bases.