Perform calculations with a basic and scientific calculator, including voice input. Convert currencies with real-time rates for 160+ countries. Calculate mortgage payments and details. Compute taxes, social security contributions, and net income.
Check real-time air quality data for cities in China and globally. View PM2.5, PM10, temperature, humidity, pressure, and other pollutants. Display AQI levels with color-coded categories indicating pollution severity.
Convert units between Chinese and American systems for length, weight, temperature, volume, area, exchange rates, speed, fuel prices, and height. Input values and select units for instant conversion. Save frequently used conversions.
