Natural Gas Flow Rate Conversion

Conversion Formula:

\[ Q_{gpm} = Q_{cfm} \times 7.481 \]

Flow Rate Equivalent (GPM): gallons/min

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is Natural Gas Flow Rate Conversion?

Definition: This calculator converts natural gas flow rate from cubic feet per minute (CFM) to gallons per minute (GPM) equivalent.

Purpose: It helps engineers and technicians compare gas flow rates with liquid flow rates using a standard conversion factor.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ Q_{gpm} = Q_{cfm} \times 7.481 \]

Where:

\( Q_{gpm} \) — Flow rate in gallons per minute
\( Q_{cfm} \) — Flow rate in cubic feet per minute
\( 7.481 \) — Conversion factor (gallons per cubic foot)

Explanation: The conversion accounts for the volume difference between cubic feet and gallons for equivalent flow rates.

3. Importance of Flow Rate Conversion

Details: Converting between units helps in system design, equipment sizing, and comparing gas flows with liquid flows in combined systems.

4. Using the Calculator

Tips: Enter the gas flow rate in CFM. The calculator will provide the equivalent flow rate in GPM.

5. Frequently Asked Questions (FAQ)

Q1: Why convert CFM to GPM?
A: This conversion helps when comparing gas systems with liquid systems or when working with equipment rated in different units.

Q2: Is the conversion exact for all gases?
A: This is a volumetric conversion. For mass flow rates, density corrections would be needed for different gases.

Q3: When would I use this conversion?
A: Useful for system design, flow comparisons, and when working with equipment that uses different flow rate units.

Q4: What's the source of the 7.481 factor?
A: It comes from the number of gallons in one cubic foot (1 ft³ = 7.481 gallons).

Q5: Can I convert back from GPM to CFM?
A: Yes, simply divide the GPM value by 7.481 to get CFM.