# How To Convert Fluid Ounces Of Water To Weight

The fluid ounce is a measure of volume rather than weight. There are 16 fluid oz. to a pint in the U.S. customary system, and 20 fluid oz. to a pint in the Imperial system used elsewhere in the world. An Imperial fluid ounce weighs exactly 1 oz., so conversion between volume and weight is not necessary. A customary fluid ounce of water weighs slightly more than 1 oz., but converting from volume to weight is a simple process.

### Step 1

Enter the value in fluid ounces into the calculator. Check the calculator display to make sure you entered it correctly.

### Step 2

Multiply by 1.043, the weight of 1 fluid oz. of pure water. The result is the weight of the water.

### Step 3

Check for errors. Divide the result from Step 2 by 1.043. If the result does not equal the value obtained in Step 2, an error occurred. Repeat the calculations until the results match.

### TL;DR (Too Long; Didn't Read)

For most purposes, it is safe to assume that the weight of 1 fluid oz. of pure water equals an ounce.

## Warning

The values are for pure water at standard temperature and pressure. Water such as seawater, containing dissolved solids, does not weigh the same as pure water.

### References

- "Webster's New World College Dictionary 4th Edition"; Michael Agnes, ed.; 2007
- University of Minnesota College of Science and Engineering: DC Motors Lab Guide
- The BBC: Tutor's Toolkit: Application of Number
- UCLA Marine Science Center: Seawater Density and Salinity

### Cite This Article

#### MLA

Robinson, David. "How To Convert Fluid Ounces Of Water To Weight" *sciencing.com*, https://www.sciencing.com/convert-fluid-ounces-water-weight-8353146/. 24 April 2017.

#### APA

Robinson, David. (2017, April 24). How To Convert Fluid Ounces Of Water To Weight. *sciencing.com*. Retrieved from https://www.sciencing.com/convert-fluid-ounces-water-weight-8353146/

#### Chicago

Robinson, David. How To Convert Fluid Ounces Of Water To Weight last modified March 24, 2022. https://www.sciencing.com/convert-fluid-ounces-water-weight-8353146/