From L/min to GPM

Flow Rate Conversion Formula:

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

Flow Rate (GPM):

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1. What is L/min to GPM Conversion?

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

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

2. How Does the Calculator Work?

The calculator uses the formula:

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

Where:

\( Q_{gpm} \) — Flow rate in gallons per minute (GPM)
\( Q_{lpm} \) — Flow rate in liters per minute (L/min)
3.785 — Conversion factor (liters per gallon)

Explanation: Since 1 US gallon equals approximately 3.785 liters, we divide the L/min value by 3.785 to get GPM.

3. Importance of Flow Rate Conversion

Details: Accurate conversion between units is crucial for system design, pump selection, and comparing specifications that use different measurement systems.

4. Using the Calculator

Tips: Simply enter the flow rate in liters per minute (L/min) and the calculator will provide the equivalent in gallons per minute (GPM).

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 3.785?
A: This is the exact conversion between US gallons and liters (1 US gallon = 3.785411784 liters).

Q2: Does this work for imperial (UK) gallons?
A: No, UK gallons are different (1 UK gallon = 4.54609 liters). This calculator uses US gallons.

Q3: What's a typical flow rate in plumbing?
A: Residential faucets typically flow at 1-2 GPM (3.8-7.6 L/min), while showerheads are often 2.5 GPM (9.5 L/min).

Q4: How precise is this conversion?
A: The calculator uses the standard conversion factor with 6 decimal places for internal calculations, displaying results to 3 decimal places.

Q5: Can I convert GPM back to L/min?
A: Yes, multiply GPM by 3.785 to get L/min. We may add a reverse calculator in future updates.