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Various Unit Conversions

Updated: Oct 12, 2023

This post is starting off very, very small. I'll add to it periodically. What I really have in mind here is an easy place I can go to when I need this type of information. What I recommend is that you download a FREE, small, handy program called Convert 123, from a company called Pipeflow. I have installed this simple program on every computer I use. It provides a wide range of unit conversions, as shown in the screenshot below. I have no affiliation with this company other than the fact that I've been a user of their excellent, cost-effective, software programs for many years. In addition to Convert 123, I use Pipe Flow Expert, Pipe Flow Wizard, and Pipe Flow Advisor.

The link for Pipeflow's free unit conversion software can be found here:

Simple, FREE, software program that can be downloaded by anyone.
Screenshot of Pipeflow's Free Unit Conversion Program

1 milliliter (mL) of purified water weighs 1 gram (g)

1 pound (lb) = 453.592370 g

1 fluid ounce (fl. oz.) = 29.573530 mL

1 mL = 0.0338 fl. oz.

2 pints = 1 quart

4 quarts = 1 gallon

1 gallon (gal) = 128 fl. oz. = 3,785.411784 mL = 3.785412 liters (L)

1 L = 0.264172 gal

7.4805 gallons = 1 cubic foot

231 cubic inches = 1 gallon

In the petroleum industry the most common liquid unit of measure is the barrel (bbl).

1 barrel (bbl) = 42 gallons

Mbbl = 1,000 gallons

MMbbl = 1,000,000 gallons

1,728 cubic inches = 1 cubic foot

27 cubic feet = 1 cubic yard


Documents Available for Download

In doing research I often come across documents that do a good job of tabulating and/or summarizing useful data and information. You can download PDF versions here.

This is a 66-page document providing information on the metric and imperial measurement systems. Numerous examples of math/conversion problems with solutions are provided. This is a very clear and concise document - well done!

Download PDF • 436KB

Short, 4-page document called Units of Concentration that discusses moles and normality.

Download PDF • 61KB

Just a 1-page document with units of measurement used in the medical field with many of which are applicable to those of us working with water and wastewater.

Download PDF • 127KB


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