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:

Where:

• \( Q_{lpm} \) — Flow rate in liters per minute (LPM)
• \( Q_{gpm} \) — Flow rate in gallons per minute (GPM)
• \( 3.785 \) — 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 international collaboration where different unit systems are used.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What's the exact conversion factor?
A: 1 US gallon = 3.785411784 liters exactly. We use 3.785 for practical calculations.

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

Q3: When would I need this conversion?
A: When working with international specifications, metric system requirements, or equipment with different unit systems.

Q4: How precise is this conversion?
A: The conversion is mathematically precise, though practical applications may round to 2-3 decimal places.

Q5: Can I convert LPM back to GPM?
A: Yes, simply divide LPM by 3.785 to get GPM.