The metric system

The mysteries of the metric system

Most of us have stared at a handy miles-to-kilometers converter right under our noses on our car dashboards (Photo by Unknown)

Miles and kilometers, feet and meters, and so on

 
 (Photo by Tom Page)

Pounds and kilos, grams and ounces, stone and tons (and tons, and tonnes)—Deciphering weights in France

 
 (Photo © Reid Bramblett)

Gallons and liters and how to order wine

 
 (Photo by Stilfehler)

Of Celsius and Fahrenheit

 
 (Photo by Ren Hao)

When to use the 12-hour or 24-hour clock, and what time zone France is in

 
 (Photo )

I'm a size what? European clothing sizes measures and shoe sizes and how to convert American clothes sizes to European (and British) ones