There are 946.35 milliliters (mL) in a US fluid quart and 1136.52 mL in an imperial quart.
1 Quart [Fluid, US] = 946.352946 Milliliters
1 Quart [UK] = 1136.5225 Milliliters
Quart is an imperial and US Customary volume unit. There is one type of quart in imperial system and 2 types (liquid and dry) in US Customary system. The abbreviation is "qt".
Milliliter is a volume unit in metric system. The abbreviation is "mL".