97 Tools
Curated practical tools with high-frequency usage, efficiently addressing various daily problems
Expiration Date Calculator
Calculate the expiration date based on the production date and shelf life, or check the near-expiry and expired status based on the expiration date.
Child Height Predictor Calculator
Predict a child's potential adult height range based on parents' heights and gender, providing parents with a reliable growth trend reference.
Pixel to Centimeter Converter
Accurately convert pixel lengths to physical centimeter dimensions based on PPI (Pixels Per Inch). Ideal for UI design, print layouts, and screen adaptation.
Pixel to Millimeter Converter
Accurately calculate the physical dimensions between pixels and millimeters based on PPI density. Ideal for UI design and print typography.
Inverse Trigonometric Function Calculator
Accurately calculate radian values for inverse trig functions like arcsin and arccos. Supports 6 function types and custom decimal precision.
CAGR Calculator
Calculate the Compound Annual Growth Rate (CAGR) of your investments. Enter the initial value, final value, and number of years to get an accurate annualized return assessment.
Age Calculator
Enter your birth date to instantly calculate your exact age, traditional Chinese age, and total days alive, plus find your Chinese zodiac, horoscope, and lunar birthday.
Simplified & Traditional Chinese Converter
Accurately convert between Simplified Chinese, Standard Traditional, Taiwanese Traditional, and Hong Kong Traditional Chinese. Supports custom dictionaries.
Random Email Generator
Bulk generate random email addresses for testing and sign-ups with custom prefixes and domains.
Chinese to Pinyin Converter
Convert Chinese characters (Hanzi) to Pinyin with tone marks or numbers. Features smart polyphone recognition and a dedicated name mode.
Random Phone Number Generator
Generate random phone numbers by country, carrier, and prefix on demand for development, testing, and data simulation.
Random Chinese Name Generator
Bulk generate random Chinese names by gender, length, and surname for novels, games, and character design.
Creatinine Clearance Calculator
Enter your age, weight, and serum creatinine to quickly assess your kidney function.
Baby 100 Days Calculator
Calculate the exact Gregorian and Lunar dates, along with the day of the week, for your baby's 1-month, 100-day, and 1-year milestones based on their birth date.
Bazi to Gregorian Calendar Converter
A two-way Bazi and Gregorian calendar converter with Late Rat Hour (Zi Shi) rule options, designed for Chinese astrology and calendar calculations.
Random Decimal Generator
Generate random decimals with a specified range, decimal places, and quantity. Ideal for data analysis, simulation experiments, and more.
PX to REM Converter
A bidirectional PX to REM converter for front-end developers and designers, featuring customizable root font sizes.
Noise Detector
Measure environmental noise decibel levels in real-time using your device's microphone. Evaluate noise levels at home, in the office, or in public spaces to protect your hearing.
Lunar and Solar Calendar Converter
A tool for converting dates between the lunar and solar calendars. It supports lunar leap months and is ideal for looking up holidays, birthdays, or historical dates.
Fuel Consumption Calculator
Calculate key data like fuel consumption per 100km (L/100km) and cost per kilometer based on your driving distance, fuel volume, and gas price.
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