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About water measurements
Water is the reference point for every other ingredient here, with a density of 1.0 g/ml, so one US cup is 237 g. It peaks near 1.000 g/ml at about 4°C and thins slightly as it warms, so hot water measured by volume weighs a touch less than cold.

Lb of water equivalent in cups?
FAQs on water weight to volume conversion
1 lb of water equals how many cups?
1 lb of water is equivalent 1.9 ( ~ 2) cups.
How much is 1.9 cups of water in lb?
1.9 cups of water equals 1 lb.
Lb to Cups of Water Conversion Chart
Note: Fractions are rounded to common recipe fractions (1/8, 1/4, 1/3, 1/2, 2/3, 3/4…). Values are rounded to 3 significant figures.
| Lb to cups of Water | |
|---|---|
| 0.12 ( ~ 1/8 ) cups | |
| 0.24 ( ~ 1/4 ) cups | |
| 0.479 ( ~ 1/2 ) cups | |
| 0.639 ( ~ 2/3 ) cups | |
| 0.959 ( ~ 1 ) cups | |
| 1.28 ( ~ 1 1/4 ) cups | |
| 1.44 ( ~ 1 1/2 ) cups | |
| 1 lb | 1.92 ( ~ 2 ) cups |
| 1 | 2.04 ( ~ 2 ) cups |
| 1 | 2.16 ( ~ 2 1/8 ) cups |
| 1 | 2.4 ( ~ 2 1/3 ) cups |
| 1 | 2.56 ( ~ 2 1/2 ) cups |
| 1 | 2.88 ( ~ 3 ) cups |
| 1 | 3.2 ( ~ 3 1/4 ) cups |
| 1 | 3.36 ( ~ 3 1/3 ) cups |
| 2 lb | 3.83 ( ~ 3 3/4 ) cups |
| 2 | 3.95 ( ~ 4 ) cups |
| 2 | 4.07 ( ~ 4 1/8 ) cups |
| 2 | 4.31 ( ~ 4 1/3 ) cups |
| 2 | 4.47 ( ~ 4 1/2 ) cups |
| 2 | 4.79 ( ~ 4 3/4 ) cups |
| 3 lb | 5.75 ( ~ 5 3/4 ) cups |
| 4 lb | 7.67 ( ~ 7 2/3 ) cups |
| 5 lb | 9.59 ( ~ 9 2/3 ) cups |
| 6 lb | 11.5 ( ~ 11 1/2 ) cups |
| 8 lb | 15.3 ( ~ 15 1/3 ) cups |
| 10 lb | 19.2 ( ~ 19 1/8 ) cups |
References:
Weight to Volume Conversions - Recipes
A note on cooking ingredients measurements
Notes: results are rounded (by default) to 3 significant figures. Cooking conversions use standard ingredient densities — the exact weight varies slightly with the brand and how tightly the ingredient is packed ☺.