US GPM to LPM Converter

Conversion Formula:

\[ Q_{lpm} = Q_{gpm} \times 3.785 \]

Flow Rate (LPM):

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1. What is a GPM to LPM Converter?

Definition: This calculator converts flow rate from US gallons per minute (GPM) to liters per minute (LPM).

Purpose: It helps engineers, plumbers, and technicians working with fluid systems to convert between these common flow rate units.

2. How Does the Converter Work?

The converter uses the formula:

\[ Q_{lpm} = Q_{gpm} \times 3.785 \]

Where:

\( Q_{lpm} \) — Flow rate in liters per minute
\( Q_{gpm} \) — Flow rate in US gallons per minute
3.785 — Conversion factor (1 US gallon = 3.78541 liters)

Explanation: The conversion is straightforward as it's based on the fixed relationship between US gallons and liters.

3. Importance of Flow Rate Conversion

Details: Accurate flow rate conversion is essential for system design, pump sizing, and compliance with specifications that may use different unit systems.

4. Using the Converter

Tips: Simply enter the flow rate in US gallons per minute (GPM). The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between US gallon and Imperial gallon?
A: A US gallon is 3.785 liters while an Imperial gallon is 4.546 liters. This converter uses US gallons.

Q2: How precise is the conversion factor?
A: The exact conversion is 1 US gallon = 3.785411784 liters, but we use 3.785 for most practical purposes.

Q3: When would I need to convert GPM to LPM?
A: When working with international specifications, metric system equipment, or when comparing data from different sources.

Q4: Can I convert LPM back to GPM?
A: Yes, simply divide LPM by 3.785 to get GPM.

Q5: Does this work for other time units?
A: The same conversion factor applies regardless of time unit (e.g., gallons per hour to liters per hour).