How do you measure 4 quarts of water?
To measure 4 quarts of water, use a liquid measuring cup that has quart markings, or a larger container marked in quarts. Since 4 quarts equals 1 gallon, you could also use a 1-gallon jug or pitcher and fill it completely. If using smaller measuring cups, fill a 1-quart measure four times, or a 1-cup measure sixteen times.