Custom CategoriesCustom categories can be added. Typical conversion categories consist of a category name, such at "Speed" and up to 20 units of measure such as "miles per hour", "feet per second", "mach" etc. In order to specify a custom category, a base unit of measurement is selected (mile per hour for instance) and other units are defined in terms of that base. Conversion values should be provided in a minimum of 6 digits of precision. For example
To Submit a custom category for inclusion in Conversions, please send us an email.