MultiCalc-Universal Calculator

This is an ultra-practical, multi-functional universal calculator that will bring great convenience to your life. Try it now!

**Core Features:**
- Standard Calculator: Smart history management with note-taking功能, adaptive font size, and precise mathematical operations
- Mortgage Calculator: Supports global regions, combined commercial +公积金 loans, and comparison of repayment methods (equal principal/interest)
- Loan Calculator: Three calculation modes (equal principal/interest/interest-only), detailed amortization schedule, supports yearly/monthly term switching
- Currency Conversion: Supports nearly 200 currencies (fiat currencies, precious metals, cryptocurrencies)
- Name of relatives: Smart relationship calculation, 190+ kinship queries, visual interactive design
- BMI Calculator: Supports metric/imperial units, visual BMI chart, personalized health advice
- Date Difference Calculator: Dual modes (date difference/age calculation), business day counting, zodiac signs, quick time presets
- Length Conversion: Full coverage of metric/imperial/special units, smart input debouncing, converts from millimeters to light-years
- Area Conversion: Supports large metric/imperial area units, smart value formatting, quick input for common values
- Temperature Conversion: 4 temperature units, 6-level color grading, smart recognition of special temperature points
- Weight Conversion: Metric/imperial/jewelry unit systems, 14 weight units, precise value formatting
- Speed Conversion: 17 speed units, covering metric/imperial/nautical/aviation units, smart value processing
- Power Conversion: 13 power units, including various horsepower units, precise conversion
- Resistance Conversion: Micro-ohms to tera-ohms (12 orders of magnitude), 9 quick-input buttons, professional implementation
- Storage Conversion: Four storage unit types (bytes, binary, decimal, bits), clear distinction between 1024/1000-based units
- Base Conversion: Binary/octal/decimal/hexadecimal conversion, smart input validation, detailed conversion info, byte calculation
- Pressure Conversion: 15 pressure units categorized into standard/common/traditional types, optimized quick input
- Fuel Consumption Conversion: Metric/imperial unit systems, 8 common fuel consumption units, smart debouncing and auto-scrolling
- Energy Conversion: 20+ energy units across inte