Convert GPM to LPM

Conversion Formula:

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

Flow Rate (LPM):

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1. What is GPM to LPM Conversion?

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

Purpose: It helps engineers, technicians, and professionals working with fluid systems to convert between imperial and metric flow rate units.

2. How Does the Calculator Work?

The calculator uses the formula:

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

Where:

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

Explanation: The conversion is a simple multiplication since 1 US gallon equals exactly 3.785411784 liters.

3. Importance of Flow Rate Conversion

Details: Accurate conversion between units is essential for system design, pump selection, and process control in international projects where different measurement systems are used.

4. Using the Calculator

Tips: Simply enter the flow rate in gallons per minute (GPM). The calculator will automatically compute the equivalent in liters per minute (LPM).

5. Frequently Asked Questions (FAQ)

Q1: What's the exact conversion factor?
A: 1 US gallon = 3.785411784 liters exactly, though 3.785 is sufficient for most practical purposes.

Q2: Does this work for both US and UK gallons?
A: No, this calculator uses US gallons (1 US gal = 3.785 L). UK gallons are different (1 UK gal = 4.546 L).

Q3: When would I need to convert GPM to LPM?
A: When working with international specifications, metric system equipment, or when documentation requires metric units.

Q4: Can I convert LPM back to GPM?
A: Yes, by dividing LPM by 3.785 (or multiply by 0.2642 for quick conversion).

Q5: Is this conversion valid for all fluids?
A: Yes, the conversion is based on volume, so it works for any liquid. However, mass flow rates would require density considerations.