1. What is a Flow Rate Unit Converter?

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

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

2. How Does the Converter Work?

The converter 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 conversion factors account for the relationships between metric and imperial volume units and different time scales.

3. Importance of Flow Rate Conversion

Details: Accurate flow rate conversion is essential for system design, equipment specification, and operational monitoring in fluid systems.

4. Using the Converter

Tips: Enter either LPM or m³/h value (not both) and click convert. The tool will calculate the equivalent flow rate in GPM.

5. Frequently Asked Questions (FAQ)

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

Q2: What's the conversion factor between LPM and m³/h?
A: 1 m³/h = 16.667 LPM (since 1 m³ = 1000 liters and 1 hour = 60 minutes).

Q3: Are these conversions exact?
A: They're based on standard conversion factors (1 gallon = 3.78541 liters, 1 m³ = 264.172 gallons).

Q4: Can I convert from GPM back to other units?
A: Currently this tool converts to GPM only, but you can reverse the formulas: LPM = GPM × 3.785, m³/h = GPM / 4.402.

Q5: When would I use m³/h vs LPM?
A: m³/h is common for larger flows (water treatment, industrial processes), while LPM is used for smaller flows (laboratory, medical devices).