Advanced Calculator
How to use Advanced Calculator
Choose a tab: Scientific for math expressions, Unit Converter for converting between units, Programmer for base conversions and bitwise operations, or Date for date calculations. The scientific calculator supports typing expressions directly or using the button grid. All calculations happen in real-time in your browser.
Features
- Scientific calculator with full expression parser (no eval)
- Unit converter with 10 categories and 80+ units
- Programmer calculator with base conversion and bitwise ops
- Date calculator with difference, add/subtract, and countdown
- Calculation history for the scientific calculator
Frequently Asked Questions
How does the expression parser work?
The calculator uses a custom-built expression parser with the Shunting-yard algorithm — no eval() is used. It properly handles operator precedence, parentheses, functions (sin, cos, log, etc.), constants (π, e, φ), and implicit multiplication.
What unit categories are available?
Length, weight, temperature, area, volume, speed, time, data storage, energy, and pressure — each with comprehensive unit options and real-time conversion as you type.
Can I work with different number bases?
Yes. The programmer calculator supports decimal, binary, octal, and hexadecimal. You can see all bases simultaneously, toggle individual bits in a 32-bit view, and perform bitwise operations (AND, OR, XOR, NOT, shifts).