There are about 1.9 cups in a pound of Water. Water weighs 237 g per cup (poured), so a pound — 453.59 g — divides to 1.91 cups. The reference liquid for all volume-to-weight conversion. Every kind of cooking, baking and drinks. Every figure on this page is approximate, because a cup measures volume and the weight depends on how the ingredient settles and how it was measured; when the amount matters — a cake, a sauce that must set, a dough that must rise — weigh the Water on a kitchen scale instead of trusting the cup. This page gives you the full table for a pound and beyond, worked examples from real recipes, the method behind the figure, and the mistakes that catch people out.
Why recipes ask for a pound of Water
Nobody buys water by the pound, but the conversion is the anchor for every other one: a pound of water is just under two cups, and that near-parity is what makes the pound-to-cup question answerable at a glance for any liquid close to water's density. If a recipe lists a liquid by weight and you know water is 237 g a cup, you can estimate any thin liquid to within a spoonful.
How many cups in a pound of Water?
A pound of Water is about 1.9 cups (1.91 cups, to be exact). The table below covers a quarter of a pound up to ten pounds, so you can read off whatever your recipe or your bulk buy calls for without doing the division yourself. If your recipe lists Water in grams, the same table works in reverse: find the grams and read across to the cups.
| Amount | Cups | Grams | Tablespoons | Millilitres |
|---|---|---|---|---|
| 0.25 lb | 0.48 | 113 | 8 | 113 |
| 0.5 lb | 0.96 | 227 | 15 | 226 |
| 0.75 lb | 1.44 | 340 | 23 | 340 |
| 1 lb | 1.91 | 454 | 31 | 453 |
| 2 lb | 3.83 | 907 | 61 | 906 |
| 5 lb | 9.57 | 2268 | 153 | 2264 |
| 10 lb | 19.14 | 4536 | 306 | 4528 |
The tablespoons column is the useful one for small amounts: a pound of Water is about 31 tablespoons, and a single tablespoon weighs about 14.8 g. Use the pounds to grams converter if your recipe lists a different weight, and the cups to grams converter if you need the figure for a single cup of water.
Worked examples
The examples below use real recipes, with the cups and the grams side by side so you can follow the maths in context. Each one also notes where the cup is good enough and where the scale earns its keep.
A pot of rice for six
A pot of rice for six needs 2 cups of Water — about 474 g — poured over 1 cup of long-grain rice and simmered covered. Two cups of water is about 474 g, just over a pound, and the 2-to-1 ratio is the starting point, not a law; older rice and brown rice need more.
A bread dough for two loaves
A bread dough for two loaves needs 1.25 cups of Water — about 296 g — mixed with flour, yeast and salt for a Saturday bake. One and a quarter cups is about 296 g, and lukewarm water wakes yeast up while hot water kills it; aim for water that feels barely warm on your wrist.
A pickling brine for a jar of cucumbers
A pickling brine for a jar of cucumbers needs 1 1/2 cups of Water — about 356 g — boiled with vinegar, salt and sugar for a quart jar. One and a half cups is about 356 g; pour the brine hot over the cucumbers and they stay crisp, while a cold brine leaves them soft.
How to measure it
Pour Water into a liquid measuring jug and read the level at eye level with the jug on a flat surface. A dry cup measure is the wrong tool for liquids: it cannot be filled to the brim without spilling, and reading it from above always overstates the amount. One tablespoon of Water weighs about 14.8 g and a teaspoon about 4.94 g, so for small amounts use measuring spoons rather than a cup.
How the figure was measured
The weight figure on this page comes from USDA: Water weighs 237 g per cup, measured poured, and that figure carries high confidence in CookScale's 120-ingredient table. One US cup is 236.6 ml, so water weighs 237 g. King Arthur rounds water to 227 g; we use the exact 237 g. All weights are per US cup (236.6 ml), and every cup-based result on this page is approximate, because a cup measures volume while the weight depends on how the ingredient settles, how fresh it is, and how it was measured. When the amount matters — a cake, a sauce that must set, a dough that must rise — weigh the Water on a kitchen scale instead of trusting the cup. Read more about this ingredient on the Water hub, which covers its weight, its measures, its storage and its substitutes in one place.
Practical guidance
Liquids are the most forgiving ingredients to measure, but they are also the easiest to over-pour: a jug read from above always looks fuller than it is. No special storage needed. For bread, weigh the water rather than measuring it; a cup of water is exact, but a jug read from above is not. When a recipe lists a liquid by weight, remember that most thin liquids sit within a few grams of water per cup, so the water figure is a decent estimate — but this page gives you the exact figure for Water, so use it.
Buying and storing a pound of Water
A pound of liquid is just under two cups, so the standard bottles and cartons on the shelf usually hold a pound or two. Buying the larger size is only a saving if you will use it before it spoils — for juice and stock that means days, for vinegar and vanilla that means years.
How the maths works
The conversion is a single division: one pound is 453.59 g, and one cup of Water weighs 237 g, so 453.59 ÷ 237 = 1.91 cups. Going the other way, one cup of Water weighs 237 g, which is 0.52 lb, and one tablespoon weighs about 14.8 g while one teaspoon weighs about 4.94 g. To get any number of cups, weigh that many times 237 g: two cups is 474 g, three cups is 711 g, and half a cup is 118 g. In volume terms, a pound of Water is about 453 ml, since one US cup is 236.6 ml. Remember that the cup is a volume and the pound is a weight, so this maths only works because we know the density of Water; the same pound of a different ingredient would be a different number of cups entirely.
Frequently asked questions
How many tablespoons are in a pound of Water?
About 31 tablespoons. A pound of Water is about 1.91 cups, and there are 16 tablespoons in a cup, so 1.91 × 16 is about 31. A single tablespoon weighs about 14.8 g.
Is a pound of Water the same as a pint?
Nearly but not exactly. A pint is 2 cups (473 ml), while a pound of Water is about 1.91 cups (453 ml), which is a little less than a pint. For thin liquids the difference is a tablespoon or two, which matters in baking but not in a soup.
How many cups of Water are in a litre?
About 4.23 cups. A litre is 1,000 ml and a US cup is 236.6 ml, so a litre of Water is 4.23 cups and weighs about 1003 g — a little over two pounds.
Does temperature change how much a pound of Water measures?
Only negligibly. Hot liquids are marginally less dense than cold ones, so a pound of hot Water measures a fraction more in cups, but the difference is a gram or two per cup. Measure at room temperature for baking, and do not worry about it for soups and sauces.
Why do some charts say a cup of water weighs 227 g?
Because the King Arthur chart rounds water to 8 oz by weight, which is 227 g, while the exact figure is 237 g — one US cup is 236.6 ml and water weighs 1 g per ml. The 10 g difference is small, but this page uses the exact 237 g.