1. What is a Volumetric Flow Rate Conversion Calculator?

Definition: This calculator converts between different volumetric flow rate units, specifically liters per minute (LPM) and cubic meters per hour (m³/h) to gallons per minute (GPM).

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

2. How Does the Calculator Work?

The calculator uses these formulas:

Where:

• \( Q_{gpm} \) — Flow rate in gallons per minute
• \( Q_{lpm} \) — Flow rate in liters per minute
• \( Q_{m3h} \) — Flow rate in cubic meters per hour

Explanation: The conversions are based on standard unit conversion factors (1 gallon = 3.785 liters, and 1 m³/h = 4.402 GPM).

3. Importance of Flow Rate Conversion

Details: Accurate flow rate conversion is essential for system design, equipment specification, and operational monitoring in various industries including water treatment, chemical processing, and HVAC.

4. Using the Calculator

Tips: Enter either LPM or m³/h value (not both). The calculator will automatically compute the equivalent GPM value. Values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why convert to GPM?
A: Gallons per minute is a common unit in many industries, especially in the US, for specifying pump capacities and system requirements.

Q2: What's the accuracy of these conversions?
A: The conversions are mathematically exact based on standard unit definitions, though practical measurements may have instrument error.

Q3: Can I convert both LPM and m³/h at once?
A: No, enter only one value at a time as they represent different flow rate measurements.

Q4: How do I convert GPM back to LPM or m³/h?
A: Use the inverse formulas: LPM = GPM × 3.785 and m³/h = GPM ÷ 4.402.

Q5: Are these conversions temperature dependent?
A: No, these are volumetric conversions independent of fluid properties. For mass flow rates, density considerations would apply.