ELI5: Explain Like I'm 5

Trade gallon

Okay kiddo, let me explain trade gallon to you in a way you can understand. Have you ever gone to the store with your mom or dad to buy milk or juice? When you buy milk or juice, you usually buy it in a carton or bottle, right? And on the side of that carton or bottle, you can see how many ounces or liters of milk or juice are inside, correct?

Now imagine if you and your mom or dad owned a store that sold milk and juice. You would need to know how much milk or juice you have in your store so that you can order more when you run out. But instead of measuring how much milk or juice you have in ounces or liters, stores use something called a trade gallon.

A trade gallon is a unit of measurement that is used by stores to measure how much liquid is inside a container. It is a little bit different than a regular gallon that you might see when you learn about liquid measurements in school. A trade gallon is equal to 128 fluid ounces or about 3.785 liters.

So, why do stores use trade gallons instead of regular gallons or liters? Well, it's because trade gallons are more precise when it comes to measuring liquids like milk or juice. When you buy milk or juice from the store, you want to make sure you are getting the exact amount you paid for, and trade gallons help stores do just that.

So the next time you go to the store with your mom or dad and you see a label on a container that says "trade gallon," now you know that it's just a special way that stores measure how much liquid is inside.