Home Back

Water Tank Flow Rate Calculator

Flow Rate Formula:

\[ F = \frac{V}{T} \]

gallons
minutes

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is a Water Tank Flow Rate Calculator?

Definition: This calculator determines the outflow rate from a tank based on the volume of liquid and the time it takes to empty.

Purpose: It helps engineers, plumbers, and facility managers calculate flow rates for system design, maintenance, and troubleshooting.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ F = \frac{V}{T} \]

Where:

Explanation: The volume is divided by time to determine the average flow rate during the emptying process.

3. Importance of Flow Rate Calculation

Details: Accurate flow rate calculations ensure proper system design, help diagnose problems, and verify pump performance.

4. Using the Calculator

Tips: Enter the tank volume in gallons and the time it takes to empty in minutes. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What units does this calculator use?
A: The calculator uses gallons for volume and minutes for time, resulting in gallons per minute (gpm).

Q2: Can I use this for other liquids besides water?
A: Yes, as long as the volume is measured in gallons, it works for any liquid.

Q3: Does this calculate instantaneous or average flow rate?
A: This calculates the average flow rate over the entire emptying period.

Q4: How accurate is this calculation?
A: It provides a theoretical average. Actual rates may vary due to factors like pipe friction, elevation changes, and valve settings.

Q5: What if my tank isn't completely emptying?
A: Use the actual volume discharged (not the full tank capacity) and the time it took to discharge that volume.

Water Tank Flow Rate Calculator© - All Rights Reserved 2025