US GPM to LPM Calculator

Conversion Formula:

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

Flow Rate (LPM):

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1. What is a GPM to LPM Calculator?

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 Calculator Work?

The calculator uses the formula:

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

Where:

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

3. Importance of Flow Rate Conversion

Details: Accurate conversion between units is essential for system design, equipment specification, and international collaboration in fluid systems.

4. Using the Calculator

Tips: Simply enter the flow rate in US gallons per minute (GPM) and the calculator will instantly provide the equivalent in liters per minute (LPM).

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between US gallon and imperial gallon?
A: 1 US gallon = 3.785 liters, while 1 imperial gallon = 4.546 liters. This calculator uses US gallons.

Q2: 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.

Q3: Is the conversion factor exact?
A: The factor 3.785411784 is exact, though we use 3.785 for practical calculations.

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

Q5: What typical applications use these units?
A: GPM is common in US plumbing and irrigation, while LPM is used internationally in medical, industrial, and scientific applications.