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How Many Quarts in a Gallon

Gallons1 and quarts2 are common units of liquid measure though they can also be used to measure dry substances. These units are mostly spread in the USA and Australia. The answer to the question, “How many quarts are there in one gallon?” is simple if you mean US gallons and US quarts. Every American schoolboy knows that:


US and Imperial Gallons and Quarts

But you should realize that there is also the imperial (UK, European) gallon, which differs from the US definition. This unit is a part of the Standard system of measures, used in Great Britain and the United States for several hundreds of years. The imperial gallon is defined as 4.546 liters, and the US gallon equals to 3.785 liters. What is more, the dry gallon is also in use in the USA. It is a bit larger than the liquid gallon and is less common.

In most other countries of the world the metric system is adopted. It measures liquids in liters and counts everything in tens.

Using Quarts and Gallons

Quarts and gallons are the most common measurements for selling different fluids. For example, petrol is usually dispensed by gallons, and milk is sold in gallon or quart containers. Smaller liquid measures are used not so often though one can buy a pint of juice in any grocery store.

These units can also be used in cooking, but as a rule it is more convenient to measure liquids in pints, fluid ounces, cups, tablespoons and teaspoons. The following table will help you to convert units. Remember that we are discussing liquid measures accepted in the USA.

 
One US Gallon
One US Quart
Tea-spoons
768
192
Table-spoons
256
64
Fluid Ounces
128
32
Cups
16
4
Pints
8
2
Quarts
4
1
  1. Gallon is a liquid measure unit accepted in many countries. The US liquid gallon equals approximately 3.785 liters.
  2. Quart (qt or q) is a unit of liquid measure widely used in the USA, Australia and some other countries. The US quart is equivalent to 0.946 liters.
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