Multi-Calculator

Multi-Calculator is a comprehensive calculator app that integrates scientific calculations, unit conversions, financial analysis, date calculations, BMI assessment, real-time currency exchange, and programmer tools.

All core calculations are performed locally on your device, requiring no internet connection (except for currency exchange), and no personal information is collected, providing you with an efficient, secure, and reliable calculation experience.

Whether you're a student, engineer, financial professional, programmer, or a regular user who needs daily conversions, Multi-Calculator can be your practical companion.

**⭐ Core Features**

**🧮 Scientific Calculator**

• Clean and intuitive large button design

• Basic operations: addition, subtraction, multiplication, division

• Advanced functions: power, square root, factorial, double factorial

• Trigonometric functions and inverse functions (degree / radian modes)

• Logarithm, percentage, and parentheses operations

• Editable input with cursor control

• History records and real-time result display

**🔁 Unit Conversion (12 Categories)**

Instant results as you type, smart categorization, quick switching.

• Length, area, volume, mass, temperature

• Digital storage, pressure, heat, speed

• Time, angle, power

Supports comprehensive conversion between metric and imperial units.

**💼 Financial Calculations**

• Bank deposit return calculation

• Investment return and annualized yield

• Loan monthly payment and interest statistics

• VAT amount calculation

**💱 Currency Exchange**

• Supports 32 major currencies

• Exchange rate source: European Central Bank (ECB)

• Automatic data updates

• Displays update time

**📅 Date and Time**

• Calculate the number of days between two dates

• Date addition/subtraction (years / months / days)

• Quick selection of start and end dates

**❤️ Health Tools**

• BMI (Body Mass Index) calculation

• Provides weight range reference and health classification

**💻 Programmer Tools**

• Real-time conversion between binary / octal / decimal / hexadecimal

• Synchronized display of all results

• Supports large number input