Convert Water from Pounds to Cup (US)

How many US cups is 1 pound of water?

1 pound of water (H2O) is 1.89 US cups. 2 pounds of water is 3.78 US cups. 1/2 pound of water is 0.94 US cups. 1/4 pound (0.25 pound) of water is 0.47 US cups. Use the converter below for any amount.

Water is the most fundamental ingredient in cooking and baking. Used to hydrate doughs and batters, cook pasta and grains, make stocks and sauces, and dissolve ingredients, it appears in almost every recipe in some form. One metric cup (250 ml) of water weighs exactly 250 grams or 8.82 ounces — a clean, round number because the gram was originally defined as the mass of one millilitre of water.

Many recipes — particularly from the US — list water in cups or fluid ounces, while others use millilitres or grams. This page lets you convert water between grams, cups, millilitres, fluid ounces, and more so you can match any recipe with whatever measuring equipment you have.

Also known as

  • H2O
  • drinking water
  • tap water
  • filtered water

No scale? The tool below gives a good estimate, but for exact bakes a digital kitchen scale removes the guesswork.

Water Measurement Converter

Enter a value and pick your units.

Result

0 Cup (US)

Common Water Conversions

Here are the most common water conversions from pounds to cups (US).

PoundsCups (US)
1 lb1.89 cups (US)
2 lb3.78 cups (US)
4 lb7.56 cups (US)
6 lb11.34 cups (US)

Water Conversion Chart

The conversion chart below gives a quick reference for converting water from Pounds to Cup (US) and other measurements.

lbcup(US)cupgramsounceskgtbsptspmlfl oz
1 lb1.89 cup (US)1.81 cup453.59 g16 oz0.45 kg30.24 tbsp90.72 tsp453.59 ml15.34 fl oz
2 lb3.78 cup (US)3.63 cup907.18 g32.01 oz0.91 kg60.48 tbsp181.44 tsp907.18 ml30.68 fl oz
4 lb7.56 cup (US)7.26 cup1814.37 g64.01 oz1.81 kg120.96 tbsp362.87 tsp1814.37 ml61.35 fl oz
6 lb11.34 cup (US)10.89 cup2721.55 g96.02 oz2.72 kg181.44 tbsp544.31 tsp2721.55 ml92.03 fl oz

Frequently Asked Questions

What is 1 pound of water in US cups?
1 pound of water is 1.89 US cups. The ratio is fixed, so 2 pounds of water is 3.78 US cups and 0.5 pounds is 0.94 US cups. Use the converter above for any quantity, or check the conversion chart on this page for the most common amounts at a glance. Open the water converter
How many US cups is 1.5 pounds of water?
1.5 pounds of water is 2.83 US cups. The ratio is fixed, so 1 pound of water is 1.89 US cups and 2 pounds is 3.78 US cups. Type any other amount into the converter above for the exact figure, or use the chart below for the common ones.
What is 2 pounds of water in US cups?
2 pounds of water is 3.78 US cups. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 pound of water is 1.89 US cups, and you can multiply or divide that figure to match whatever your recipe needs. Enter any amount in the converter above for an exact US cups reading.
How many pounds of water is 1.89 US cups?
1.89 US cups of water is 1 pound. The conversion works the same in reverse, so you can switch between US cups and pounds without changing the result. This helps when a recipe lists pounds but you would rather weigh or measure in US cups. The converter above and the chart below cover both directions for any amount.
How many US cups is 1 pound of H2O?
H2O is another name for water, so 1 pound of H2O is 1.89 US cups, exactly the same as water. The figure does not change with the name: 2 pounds is 3.78 US cups and 0.5 pounds is 0.94 US cups. Use the converter above for any quantity, or read the conversion chart on this page for the most common amounts.
Are water and H2O the same thing?
Yes. H2O is another name for water, so they are the same ingredient and convert identically. 1 pound of water is 1.89 US cups under either name, and 2 pounds is 3.78 US cups. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.
What is 1/2 lb water in US cups?
1/2 pound of water is 0.94 US cups. The ratio is fixed, so 1 pound of water is 1.89 US cups and 2 pounds is 3.78 US cups. Half measures come up often when scaling a recipe down, and the figure divides cleanly. Use the converter above for any other amount, or the chart below for the common ones.
What is 1/4 lb water in US cups?
1/4 pound (0.25 pound) of water is 0.47 US cups. The ratio is fixed, so 1 pound of water is 1.89 US cups and 2 pounds is 3.78 US cups. Quarter amounts often come up when scaling a recipe down step by step, and the figure divides cleanly. Use the converter above for any other quantity, or the chart below for the most common amounts.

Other Ingredients

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