Metric Conversion is an online resource owned and maintained by Wight Hat Ltd, designed to help people convert measurements and understand units used around the world. The site offers calculators and conversion charts across a broad range of categories, including temperature, length, area, volume, weight, speed, time, angle, pressure, and energy and power. Users can select a conversion type, choose their starting unit, or search for a specific converter.

Popular tools cover everyday conversions such as kilometers and miles, Celsius and Fahrenheit, kilograms and pounds, meters and feet, inches and centimeters, and miles per hour and kilometers per hour. Alongside its calculators, Metric Conversion provides tables and background information about the metric system, including its origins and relationship to other measurement systems. The site also offers iPhone and Android apps, and invites visitors to suggest additional units or improvements.

Available in numerous languages, it serves people seeking practical, accessible support with measurement conversions