The Ultimate Calculator Companion for Android

All-in-One Calculator is your comprehensive mathematical toolkit, featuring over 75 specialized calculators and converters organized into intuitive categories. From basic arithmetic to complex scientific calculations, unit conversions to financial planning - this app has everything you need in one beautifully designed package.

KEY FEATURES:

🧮 Dual Calculator Modes

Basic calculator with large, easy-to-press buttons
Full-featured scientific calculator with advanced functions
Editable input with cursor support and copy/paste functionality
Calculation history and memory functions
Home screen widget for quick access

📐 Mathematics & Algebra (23 Tools)

Percentage, proportion, and ratio calculators
Equation solver, GCD & LCM finder
Combinations, permutations, and prime number tools
Matrix, vector, and complex number calculators
Statistical calculator and base converter

📏 Geometry (9 Tools)

2D shape and 3D body calculators
Pythagorean theorem and triangle solver
Specialized calculators for circles, rectangles, cubes, spheres, and cylinders

🔄 Unit Converters (11 Tools)

Currency converter with 160+ currencies (offline rates)
Data storage, time, force, and torque converters
Angle, acceleration, and cooking measurement converters
Shoe and ring size converters

💰 Finance (14 Tools)

Loan, mortgage, and auto loan calculators
Interest, investment, and retirement planners
Sales tax, VAT/GST, and discount calculators
Margin & profit calculator and purchasing power parity

🏥 Health (6 Tools)

BMI calculator and body fat percentage estimator
Calories burned and water intake calculators
Target heart rate and blood alcohol content calculators

⏱️ Date & Time (6 Tools)

Age calculator and date difference tool
Time interval and workday calculator
Time zone converter

🔭 Specialized Tools

Astronomy calculator
Electrical tools (RLC circuit, wire size, capacitor code)
Periodic table reference
Ohm's law calculator and fuel cost estimator
Password generator and mileage calculator
WHY CHOOSE ALL-IN-ONE CALCULATOR?

✅ Completely Offline: All calculators work without internet connection
✅ Modern Design: Material Design 3 with responsive layouts and dark/light themes
✅ Privacy-Focused: No data collection - all calculations stay on your device
✅ Efficient: Optimized performance with lazy loading and memory-efficient calculations
✅ User-Friendly: Intuitive navigation with favorites and search functionality
✅ Regular Updates: Continuously improved with new features and calculators

Perfect for students, teachers, engineers, financial professionals, and everyday users who need quick access to a variety of calculation tools. Download now and simplify your mathematical tasks with the most comprehensive calculator app on Android!