1. What is LPM to GPM Conversion?

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

Purpose: It helps engineers, plumbers, and technicians work with flow rate measurements in different unit systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

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

Explanation: Since 1 US gallon equals 3.785 liters, we divide the LPM value by 3.785 to get GPM.

3. Importance of Flow Rate Conversion

Details: Accurate conversion between measurement systems is crucial for international projects, equipment specifications, and system design.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why 3.785 as the conversion factor?
A: 1 US gallon is exactly 3.785411784 liters. We use 3.785 for practical calculations.

Q2: Is this for US gallons or Imperial gallons?
A: This calculator uses US gallons (3.785 liters). Imperial gallons are 4.546 liters.

Q3: When would I need this conversion?
A: When working with international equipment specs, comparing flow rates, or converting between metric and imperial systems.

Q4: How accurate is this conversion?
A: The conversion is mathematically exact, though practical measurements may have instrument error.

Q5: Can I convert GPM to LPM with this?
A: No, this is one-directional. For reverse conversion, multiply GPM by 3.785.