Wastewater math
MGD to GPD Conversion for Wastewater Operators
Converting million gallons per day to gallons per day.
The formula
Formula
Convert MGD to gpd
gpd = MGD × 1,000,000WPI Formula/Conversion Table (2023), Printed page 9 of 10, Conversion Factors
Worked example
Step by Step
A wastewater flow is 1.2 MGD. What is the same flow in gallons per day?
What is the question asking for?
Report the same flow in gallons per day (gpd).
Which value and unit matter?
The given flow is 1.2 million gallons per day (MGD).
What does the M in MGD mean?
M means one million. One MGD represents one million gallons per day.
How should the units cancel?
Multiply by 1,000,000 gpd for every 1 MGD. MGD cancels, leaving gpd. Now do the multiplication yourself.
Answer: 1,200,000 gpd
Practice
Try It Yourself
Practice this math in the Math Center, with hints and worked steps.
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