I learned this when I was about five years old: A cup is 8 ounces. Two cups in a pint, two pints in a quart, four quarts in a gallon. In other words, 128 ounce

I learned this when I was about five years old: A cup is 8 ounces. Two cups in a pint, two pints in a quart, four quarts in a gallon. In other words, 128 ounces. This is of course for U.S. gallons. A lot of things now measured in the metric system are still based on the standard U.S. system, just converted to metric. This is, for example, why whisky comes in 750 ml bottles instead of (say) one liter bottles. It was traditionally sold in fifths (of gallons); i.e., 25.6 ounces, which converts to 757.1 ml. It's also why there are track events of 100 meters, 200m, 400m, 800m, and 1600m. They are near the distance of the old races, and it seems especially noticeable to me for the half mile and mile, probably because I ran those races when I was a teenager. Thankfully there's almost zero chance the U.S. will convert to metric in my lifetime. I can feel miles and gallons and Fahrenheit in my bones. Metric, not so much.