One quart equals 946 milliliters. Quarts and milliliters are both liquid measurements for units of volume. Milliliter is a metric measurement, and quart is an imperial measurement.
To convert a measurement in milliliters to quarts, divide the number of milliliters by 946 to get the same amount of volume in quarts. To convert quarts to milliliters, multiply the number of quarts by 946 to get the answer in milliliters. One quart equals 4 cups or 32 fluid ounces. One cup equals 237 milliliters or 8 fluid ounces. Four quarts equals 1 gallon, which is also equal to 3.784 liters. A liter equals 1000 milliliters.