All in one calculator : 75+

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!