INGREDIENT CONVERSION
How Much Does a Cup of Water Weigh?
Quick answer237 g
1 cup of water = 237 g.
A US cup of water weighs about 237 grams, or 8.36 ounces. Water is the reference liquid: one milliliter weighs one gram, so a pound of water is just under 2 cups (1.91 cups).
Cups of water by weight
| Cups | G | Oz | Lb |
|---|---|---|---|
| ¼ cup | 59.3 g | 2.09 oz | 0.131 lb |
| ½ cup | 118.5 g | 4.18 oz | 0.261 lb |
| 1 cup | 237 g | 8.36 oz | 0.522 lb |
| 2 cups | 474 g | 16.7 oz | 1.04 lb |
| 4 cups | 948 g | 33.4 oz | 2.09 lb |
| 6 cups | 1,422 g | 50.2 oz | 3.13 lb |
| 8 cups | 1,896 g | 66.9 oz | 4.18 lb |
| 16 cups | 3,792 g | 133.8 oz | 8.36 lb |
Pounds of water in cups
| Lb | Cups | Gallons |
|---|---|---|
| 1 lb | 1.91 cups | 0.12 gallon (about ⅛ gallon) |
| 2 lb | 3.83 cups (about 3⅞ cups) | 0.239 gallon (about ¼ gallon) |
| 5 lb | 9.57 cups (about 9⅝ cups) | 0.598 gallon |
| 10 lb | 19.1 cups (about 19⅛ cups) | 1.2 gallons |
| 30 lb | 57.4 cups | 3.59 gallons (about 3⅝ gallons) |
Weights and volumes on this page use these grams-per-US-cup densities: water 237 g. Packing, sifting and brand can shift real results by 5–15%, so weigh when a recipe depends on precision.
Common questions
How many oz are in 1 cup of water?
1 cup of water = 8.36 oz.
How many lb are in 6 cups of water?
6 cups of water = 3.13 lb.
How many cups is 1 lb of water?
1 lb of water = 1.91 cups.
How many gallons is 30 lb of water?
30 lb of water = 3.59 gallons (about 3⅝ gallons).