Convert length, temperature, weight, area, volume, speed, power, and pressure in one place
Automatically convert all units based on 1 source unit. Click a row to set that unit as the target.
| Unit | Converted Value (based on 1 source unit) |
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Universal Unit Converter is an online conversion tool supporting common physical quantities such as length, temperature, weight, area, volume, speed, power and pressure. Select the source and target units and enter a value to quickly calculate the conversion result. It is suitable for unit conversion in daily life, study, engineering calculations and work.
The tool provides multiple common unit types and allows conversions between different units on one page without using separate conversion tools.
Supports kilometers, meters, decimeters, centimeters, millimeters, micrometers, nanometers, picometers, angstroms, inches, feet, yards, miles, nautical miles and other length units, as well as commonly used Chinese units such as li, zhang, chi and cun.
Supports conversion between Celsius, Fahrenheit and Kelvin.
Supports kilograms, grams, milligrams, tons, jin, liang, pounds, ounces and other common weight or mass units.
Supports square meters, square kilometers, square centimeters, hectares, mu, square feet, square inches and other common area units.
Supports cubic meters, cubic centimeters, liters, milliliters, gallons and other common volume and capacity units.
Supports meters per second, kilometers per hour, miles per hour, knots and other common speed units for transportation, sports and engineering calculations.
Supports watts, kilowatts, megawatts, horsepower and other common power units.
Supports pascals, kilopascals, megapascals, standard atmospheres, bars, millimeters of mercury and other common pressure units.
In addition to specifying source and target units, the tool provides a common unit reference table. After entering a value, you can view the equivalent values in multiple common units for quick comparison.
Using 1 kilometer as a reference, you can quickly view the corresponding values in meters, decimeters, centimeters, millimeters, inches, feet, yards, miles and nautical miles. For example, 1 km = 1000 m.
Results are calculated according to standard conversion relationships between units. For very large or very small quantities, scientific notation may be used to maintain numerical accuracy and readability.
Unit conversion changes a physical quantity from one measurement unit to another, such as kilometers to meters, kilograms to grams or Celsius to Fahrenheit.
It mainly supports common units for length, temperature, weight, area, volume, speed, power and pressure.
1 kilometer equals 1000 meters, or 1 km = 1000 m.
Yes. The common unit reference table can use the current source unit as the basis and display equivalent values in multiple units simultaneously.
No. Enter a value and select the units directly on the webpage without installing additional software.
This tool is intended for conversions between common measurement units. Conversion rules and precision may vary between units. For engineering, scientific research, trade or other high-precision applications, final results should be confirmed according to applicable standards and industry requirements.
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