Input format per line: value + space + unit, e.g. "100 m", "50 kg", "25 Celsius"
Select the unit category you want to convert (e.g., length, weight, temperature), enter a value in the input field and choose the source unit, and the tool will automatically convert it to all supported target units. Temperature conversion supports Celsius, Fahrenheit, Kelvin, and Rankine. Data storage conversion supports both decimal (SI) and binary (IEC) standards.
In the quick reference table area, you can look up common conversion relationships and quickly find specific values. For example, see how many kilometers equal one mile, or how many kilograms equal one pound. The quick table automatically updates when you switch categories.
This tool supports decimal and fractional inputs, with results kept to appropriate significant figures. For very large values, scientific notation is used for easier reading.
Unit converters are useful in both everyday life and professional work. When traveling abroad, convert miles to kilometers or Fahrenheit to Celsius. In cooking, convert ounces to grams or cups to milliliters. Engineers frequently convert between imperial and metric units when reading and translating international technical documents.
In IT, data storage unit conversion is especially important. Hard drive manufacturers typically label capacity using decimal (1GB = 10^9 bytes), while operating systems display using binary (1GiB = 2^30 bytes), causing users to feel their drive capacity is "missing." This tool supports both standards, helping users understand the difference.
The International System of Units (SI) is the most widely adopted measurement system globally, built on seven base units: meter, kilogram, second, ampere, kelvin, mole, and candela. Most countries (with a few exceptions like the US, Myanmar, and Liberia) have officially adopted metric units.
In data storage, the confusion between decimal and binary prefixes has a long history. The IEC established binary prefix standards in 1998: KiB (kibibyte), MiB (mebibyte), GiB (gibibyte), etc., to distinguish from KB, MB, GB, and other decimal prefixes. However, manufacturer and user habits have not fully aligned, leading to ongoing confusion.