# Water Weight Calculator – How Much Does Water Weigh?

Find how much water weighs given a volume in teaspoons, tablespoons, cups, quarts, pints, gallons, liters, or milliliters.

Ounces
Pounds
Grams
Kilograms

## How Much Does Water Weigh?

The weight of a volume of water can be found given the density, which is the mass compared to the volume. The density of water is 1 kilogram per liter (kg/L) at 39.2°.

This means that 1 liter (L) of water weighs 1 kilogram (kg) and 1 milliliter (mL) of water weighs 1 gram (g).

In common US measures, one gallon of water weighs 8.345 pounds. The density of water varies slightly at different temperatures which will impact the weight of for the same volume.

### How to Calculate the Weight of Water

To find the weight of water, start by finding the density(1 kg/L at 39.2°) and the volume of water. Convert the volume of water to liters and then multiply by the density to find the weight. Use our volume conversion calculators to convert different volumes to liters.

Example: For 10 mL of water at a density of 1 kg/L

volume = 10 mL
volume = 10 mL ÷ 1000 = .01 L
density = 1 kg/L
weight = .01 kg
weight = .01 kg × 1000 = 10 g

1 gram is equal to 0.035274 ounces so to get a result in ounces simply multiply the grams by 0.035274. You can also use our weight conversion calculators to convert from grams and kilograms to pounds and ounces.

### Weight of Water for Different Volumes

Weight of water by unit of measure
Volume Weight (oz) Weight (lb) Weight (g) Weight (kg)
1 teaspoon 0.1739 oz 0.0109 lb 4.929 g 0.004929 kg
1 tablespoon 0.5216 oz 0.0326 lb 14.787 g 0.0148 kg
1 cup 8.345 oz 0.5216 lb 236.59 g 0.2366 kg
1 pint 16.691 oz 1.043 lb 473.18 g 0.4732 kg
1 quart 33.382 oz 2.086 lb 946.35 g 0.9464 kg
1 gallon 133.53 oz 8.345 lb 3,785.4 g 3.785 kg
1 milliliter 0.0353 oz 0.002205 lb 1 g 0.001 kg
1 liter 35.274 oz 2.205 lb 1,000 g 1 kg
1 cubic inch 0.578 oz 0.0361 lb 16.387 g 0.0164 kg
1 cubic foot 998.85 oz 62.428 lb 28,317 g 28.317 kg
1 cubic yard 26,969 oz 1,685.6 lb 764,555 g 764.55 kg
1 cubic centimeter 0.0353 oz 0.002205 lb 1 g 0.001 kg
1 cubic meter 35,274 oz 2,204.6 lb 1,000,000 g 1,000 kg

### Density of Water

Density of water at different temperatures
Temperature
( °F / °C )
Density
( grams per cm3 )
32° / 0° 0.99987 g/cm3
39.2°/4.0° 1.00000 g/cm3
40°/4.4° 0.99999 g/cm3
50°/10° 0.99975 g/cm3
60°/15.6° 0.99907 g/cm3
70°/21° 0.99802 g/cm3
80°/26.7° 0.99669 g/cm3
90°/32.2° 0.99510 g/cm3
100°/37.8° 0.99318 g/cm3
120°/48.9° 0.98870 g/cm3
140°/60° 0.98338 g/cm3
160°/71.1° 0.97729 g/cm3
180°/82.2° 0.97056 g/cm3
200°/93.3° 0.96333 g/cm3
212°/100° 0.95865 g/cm3

Working on a plumbing project? Use our pipe volume calculator to calculate the volume and weight of the water in your plumbing system.