QuickCalculator is a multi-mode calculator that goes far beyond basic arithmetic. Switch between standard, programmer, matrix, graphing, statistics, and unit conversion modes — all in one clean, keyboard-friendly interface with sidebar navigation.
Why QuickCalculator?
- Six modes in one app — No need for separate tools. Standard, programmer, matrix, graphing, statistics, and unit converter are all built in
- Instant mode switching — Jump between modes from the sidebar without losing your work
- Keyboard-first design — Full keyboard shortcut support for fast, efficient calculations
Calculator Modes
- Standard — Everyday arithmetic with a full-size keypad, memory functions, and calculation history
- Programmer — Work in hexadecimal, binary, octal, and decimal. Bitwise operations, bit shifting, and live base conversion
- Matrix — Compute with 2×2 and 3×3 matrices. Addition, subtraction, multiplication, determinant, transpose, and inverse
- Graphing — Plot mathematical functions on an interactive coordinate plane with zoom and pan
- Statistics — Enter data sets and compute mean, median, mode, standard deviation, variance, and more
- Unit Converter — Convert between length, weight, temperature, volume, area, speed, time, and data storage units
Key Features
- Sidebar Navigation — All modes accessible from a collapsible sidebar. Clean, distraction-free layout
- Calculation History — Review past calculations and reuse results. History persists across sessions
- Live Base Conversion — In programmer mode, see your value in hex, decimal, octal, and binary simultaneously
- Matrix Operations — Full suite of matrix math including determinant, transpose, and inverse for 2×2 and 3×3
- Interactive Graphs — Plot functions with pinch-to-zoom and drag-to-pan. Trace values along curves
- Keyboard Shortcuts — Number keys, operators, Enter to evaluate — use it like a hardware calculator
- Theme Customization — Light and Dark modes with Vivid and Chic variants. Adapts to your system preference
Perfect For
- Students working through math, physics, and computer science coursework
- Developers who need quick hex, binary, and bitwise calculations
- Engineers performing matrix operations and unit conversions
- Data analysis with built-in statistical functions
- Anyone who wants a single, reliable calculator for every task
Getting Started
- Launch the app to start in Standard calculator mode
- Use the sidebar to switch between Standard, Programmer, Matrix, Graphing, Statistics, and Unit Converter
- Type numbers and operators directly from your keyboard or tap the on-screen keypad
- Press Enter or tap the equals button to evaluate
- Swipe up on the display area to view calculation history
Privacy & Security
- No account required — start calculating immediately
- No data collection or analytics
- No internet access needed
- Calculation history is stored locally on your device
- Works fully offline