Article — Quarts to Cups Converter
Quarts to cups: 4 cups per quart, and how to spot a British recipe in disguise
1 US liquid quart = 4 US cups, exactly. 2 quarts = 8 cups. 4 quarts = 16 cups = 1 gallon. This is one of the cleanest conversions in the US customary system, and the relationship is identical in the imperial UK system (4 imperial cups per imperial quart) - although the imperial quart is 20% larger. The US dry quart is the outlier at 4.65 cups, used for fruit, grain, and other dry produce sold by volume.
For almost every US recipe that calls for "quarts," the conversion is multiply by 4 to get cups. For older British recipes the same multiplier applies, but the resulting cups are imperial, not US. The calculator above handles all three standards.
How many cups are in a quart?
The straight answer: 1 quart = 4 cups, in both the US liquid system and the imperial UK system. The cup-to-quart ratio has been fixed at 4 in both systems since the imperial gallon was redefined in 1824. The US dry quart, used for produce, holds 4.65 cups because it descends from a different historical gallon.
- US liquid quart = 4 US cups = 32 fl oz = 946 mL (the default for cooking)
- US dry quart = 4.65 US cups = 1101 mL (berries, grain, dry goods)
- Imperial UK quart = 4 imperial cups = 1137 mL (older British recipes)
- 1 US gallon = 4 US quarts = 16 US cups = 128 fl oz
- Liquid quart in litres = 0.946 L (about 5% smaller than 1 litre)
NIST publishes the official US conversion factors in Handbook 44 Appendix C. The USDA Food Buying Guide is the standard reference for institutional cooks and uses the US liquid quart for all liquid ingredients. Both confirm: 1 quart = 4 cups for liquids.
The US liquid hierarchy
The US liquid system is binary at every step except gallon-to-quart. Once you remember the chain gallon → quart → pint → cup → fluid ounce, every conversion in the system follows.
1 gallon 4 quarts1 quart 2 pints1 pint 2 cups1 cup 8 fluid ounces1 fluid ounce 2 tablespoons1 tablespoon 3 teaspoons1 gallon → 1 fl oz ×128 (the full chain)Quart sits exactly in the middle of the hierarchy: large enough to be a useful kitchen measure, small enough to lift in one hand. A "quart of milk" is a familiar phrase in the US for this reason. In recipe writing, the quart is the unit used when the ingredient is between two cups (where the cup is more natural) and a gallon (where the gallon is).
US versus imperial quart - the 20% gap
The US quart and the imperial UK quart are different sizes because they descend from different historical gallons. The US kept the British wine gallon of 1707 (231 cubic inches), which the colonies used for trade. Britain itself moved on in 1824, replacing the chaos of three gallons (wine, ale, and corn) with a single new imperial gallon of 277.42 cubic inches.
A British recipe that calls for 2 quarts of stock means 2272 mL, not the 1893 mL you would get measuring with US quarts. The cup-to-quart ratio stays at 4 in both systems, but the absolute volumes diverge by 20%. The same trap appears with pints: a US pint is 473 mL, an imperial pint is 568 mL - the famous “British pint at the pub” difference. Check whether the recipe specifies US or UK measures before scaling up.
Dry quart versus liquid quart
The US system distinguishes between dry and liquid measures for historical reasons that go back to the colonial period. The liquid quart (946 mL) is what every recipe and beverage container means by "1 quart." The dry quart (1101 mL) is used in legal definitions of standard pack sizes for fruit, vegetables, and grain - a "dry quart of strawberries" or "dry pint of blueberries" you might see at a farm stand or in USDA specifications.
For recipes, the dry quart almost never appears. A baking recipe that calls for "1 quart of flour" means 4 cups by volume - and even that is rare, because flour is more commonly measured by weight or by cups directly. The 16% gap between US dry quart and US liquid quart is mostly a curiosity for the kitchen cook; it matters only when buying produce by volume from a regulated seller.
The 1824 British Weights and Measures Act defined the imperial gallon as the volume of 10 pounds of distilled water at 62°F and 30 inches of mercury. The Parliament deliberately created a standard measurement based on a physical property of water. The resulting volume was 277.42 cubic inches = 4546 mL - and the corresponding quart, a quarter of that, was 1137 mL. The US kept the older wine gallon (231 cubic inches) and the smaller quart that goes with it. Two and a half centuries of British and American kitchens have been working with slightly different measuring cups ever since.
Common conversions: 1, 2, 4 quarts
The conversions a US cook actually needs, day-to-day:
¼ quart 1 cup (8 fl oz, 237 mL)½ quart 2 cups = 1 pint (473 mL)1 quart 4 cups (946 mL)2 quarts 8 cups = ½ gallon (1.89 L)3 quarts 12 cups (2.84 L)4 quarts 16 cups = 1 gallon (3.79 L)5 quarts 20 cups (4.73 L, Dutch oven)6 quarts 24 cups (5.68 L, Instant Pot)Where the quart came from
The word "quart" comes from the Latin quartus, meaning "fourth" - a quart is a quarter of a gallon, and has been for as long as the gallon has existed. The quart is older than the cup as a measuring unit. The cup, as a defined volume, comes from American cookbooks of the late 19th century, when Fannie Farmer's 1896 Boston Cooking-School Cook Book standardised level-cup measurements for home recipes.
Before Fannie Farmer, recipes used loose measures: "a wineglass of brandy," "a teacup of milk," "a pinch of salt." Standardising the cup at 8 fluid ounces (half a pint, a quarter of a quart, an eighth of a half-gallon, a sixteenth of a gallon) connected the new home kitchen unit to the older trade hierarchy. The cup became the cooking unit; the quart and gallon remained the shopping units.
Quart sizes for cookware and storage
The quart is the standard sizing unit for US cookware. Slow cookers come in 4-, 6-, and 8-quart sizes (16, 24, and 32 cups). The popular 6-quart Instant Pot holds 24 cups - enough to make 8 servings of a one-pot meal. Stockpots range from 8 to 16 quarts (32 to 64 cups). Mason jars are sized in quarts and pints: the standard "wide-mouth quart" holds 4 cups (32 fl oz, 946 mL), and the "wide-mouth pint" holds 2 cups (16 fl oz, 473 mL).
If a recipe says “serves 4” and the total volume comes to about 1 quart, each serving is one cup - 237 mL. This rule of thumb works for soups, stews, and one-pot meals. A 6-quart pot of chili at 4 servings each (1.5 cups) feeds 16 people; the same pot at 2 servings each (3 cups) feeds 8.
When quarts stop being useful
Quarts work well for liquids in the 1-to-10 quart range. Below 1 quart, the cup is the natural unit (4 cups = 1 quart, but most recipes never need to use the word "quart" if the total is under 4 cups). Above 10 quarts, the gallon takes over (4 quarts = 1 gallon, and any volume above 10 quarts is typically expressed in gallons).
Internationally, the quart is rare. Modern recipes from Europe, Australia, New Zealand, and most of the rest of the world specify litres and millilitres directly. The quart survives in the US, in older UK and Canadian recipes, and in a handful of imperial-era contexts (pints in British pubs, pounds and ounces at British butchers). For most cooks outside the US, the quart is an oddity to look up - which is what this calculator is here for.