Liters, meters, grams: Do you use the metric system when communicating with an international audience?

Non-native speakers use English when communicating with an international audience and it makes total of sense – English has become a global standard. It’s a wonderful language. International communication is a good thing. The metric system is a global standard and the official system for all nations worldwide except for Myanmar, Liberia and the United States. I know that some people in the US resist switching, but they should ask themselves the following question: Which is easier to learn? A second language or a new system of measurements with a handful of terms and their translation from gallons, ounces, inches and feet into their metric equivalent.

What’s your view on the topic?