I consider myself pretty conversant in metric units. I know that 20 kilograms is 44 pounds (double it and add 10%) and that five kilometers is a little over three miles (I’ve, uh, run a lot of 5Ks).

Travel expert Rick Steves shares a simple trick to convert Celsius to Fahrenheit, which is accurate enough for tourists to ...

If you live in one of the few countries that use the Fahrenheit temperature scale (that would be the United States, the Bahamas, the Cayman Islands, Liberia, Palau, the Federated States of Micronesia ...