Convert GPM to L/min

Flow Rate Conversion Formula:

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

Flow Rate (L/min):

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1. What is GPM to L/min Conversion?

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

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:

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

Where:

\( Q_{lpm} \) — Flow rate in liters per minute
\( Q_{gpm} \) — 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 flow rate conversion is essential for system design, pump sizing, and ensuring compatibility between components using different measurement systems.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Is this conversion for US gallons or UK gallons?
A: This calculator uses US gallons (1 US gallon = 3.785 liters). UK gallons are different (1 UK gallon = 4.546 liters).

Q2: Why is flow rate conversion important?
A: Many hydraulic systems use components with specifications in different units, requiring accurate conversion for proper system design.

Q3: How precise is this conversion?
A: The conversion factor is exact (1 US gallon = exactly 3.785411784 liters), though we use 3.785 for practical calculations.

Q4: Can I convert L/min back to GPM?
A: Yes, use the inverse formula: \( Q_{gpm} = Q_{lpm} \div 3.785 \).

Q5: Where is this conversion commonly used?
A: In water treatment, hydraulic systems, irrigation, and any application involving fluid flow measurements.