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How to calculate liquid volume

Updated April 17, 2017

Knowing the amount of volume that you have in a container can be a very important piece of information. Whether it is medication or experimentation, improper amounts of a liquid can have dangerous results. Here is a simple formula to determine the exact volume of the liquid in your container.

Find the mass of the liquid. Mass can be a known unit, or it can be determined with a scale or other mass measuring device.

Find the density of the liquid. If this is not a known number, the density of most common liquids can be found in chemistry books or online.

Note that the formula for finding liquid volume can be determined through simple mathematics. Use the formula liquid volume equals mass divided by density (Volume=mass/density).

For example: Density = 2.0g/ml Mass = 8g Volume = 8g / (2.0g/mL) = 4mL

Tip

Make sure the units of your density match those of the volume and mass. If density is g/ml, the volume will be in ml and the mass must be in grams.

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About the Author

Robert Kohnke has been an avid writer since 1995. Kohnke is well-versed in gardening and botany, electronic/computer repair and maintenance, and technical support. He graduated with an Associate of Arts in agricultural business from Cosumnes River College, where he is continuing his education in computer technology and computer information science.