Converter
Roman and Arabic Numerals Converter
This tool instantly performs two-way conversion between Roman numerals and Arabic numbers.
Dog Age Converter
The dog age calculator helps owners better understand their pet’s actual life stage. By entering the dog's age (in years and months), it instantly converts it into the equivalent human age. Conversely, users can also input a human age to estimate the corresponding dog age.
Cat Age Converter
This cat age calculator allows users to convert a cat's real age (in years and months) into its human age equivalent, or estimate the cat age based on a given human age. Users only need to input either one, and the system will instantly calculate and display the corresponding result.
Shoe Size Converter
This is a convenient and practical shoe size conversion tool that supports multiple international sizing systems (US, UK, Japan, Europe, and Taiwan). It takes into account gender differences and brand variations. With a simple interface, you can quickly convert shoe sizes across regions and brands — perfect for online shopping, traveling, or size comparison reference.
Power Converter
This is a simple and intuitive power unit conversion tool that allows you to perform real-time bidirectional conversions between various common power units.
Energy/Heat Converter
This energy and heat unit conversion tool supports bidirectional input and real-time calculation, allowing users to freely switch and compute between different units. Simply enter a value on either side, and the system will automatically calculate and sync the corresponding result on the other side.
Pressure Converter
The pressure unit conversion tool supports various pressure units commonly used in international standards and practical applications, including Pascal (Pa), kilopascal (kPa), megapascal (MPa), bar, standard atmosphere (atm), pounds per square inch (psi), millimeters of mercury (mmHg), and torr. These units are widely used in physical sciences, engineering mechanics, atmospheric pressure measurement, medical equipment, tire pressure, and various industrial pressure monitoring systems.
Speed Converter
A simple and intuitive speed unit conversion tool that supports bidirectional input and real-time synchronized calculation, allowing quick conversions between various common speed units. Users only need to enter a value in any field, and the system will automatically calculate the corresponding unit result.
Area Converter
This is a cleanly designed, intuitive area unit conversion tool that allows real-time bidirectional conversions between various area units. Users can freely input values in either the left or right field, and the system will automatically calculate and display the corresponding result in sync, with no need to click any buttons for conversion.
Volume Converter
This is a simple and practical volume unit conversion tool, suitable for a variety of everyday and professional scenarios such as recipe measurements, liquid container volume calculations, engineering conversions, and international unit changes. The tool features a bidirectional input design, allowing users to input values on either side. The system will instantly convert and update the corresponding value in real time, without the need to click any buttons—making conversions quick and seamless.
Weight Converter
This is a simple and practical weight unit conversion tool that supports bi-directional input and real-time calculation. It allows users to quickly convert values between a variety of common weight units. Just enter a number on either side, and the system will automatically calculate and update the result on the other side.
Length Converter
This is a length unit conversion tool with a clean design and intuitive operation, allowing real-time bidirectional conversions between various units. Users can enter a value in either the left or right field, and the tool will automatically calculate and display the corresponding result.
Celsius ↔ Fahrenheit Converter
This is a simple temperature converter that allows you to easily convert between Celsius and Fahrenheit. Just enter the temperature on one side, and you will instantly get the corresponding value.