1. What is m³/h to GPM Conversion?

Definition: This calculator converts flow rate from cubic meters per hour (m³/h) to gallons per minute (GPM).

Purpose: It helps engineers, plumbers, and technicians work with different flow rate units used in various systems and countries.

2. How Does the Conversion Work?

The conversion uses the formula:

Where:

• \( Q_{gpm} \) — Flow rate in gallons per minute (GPM)
• \( Q_{m3/h} \) — Flow rate in cubic meters per hour (m³/h)
• 4.402 — Conversion factor (1 m³/h = 4.402 GPM)

Explanation: The conversion factor accounts for both volume (cubic meters to gallons) and time (hours to minutes) unit changes.

3. Importance of Flow Rate Conversion

Details: Proper unit conversion ensures accurate system design, pump selection, and fluid dynamics calculations across international projects.

4. Using the Calculator

Tips: Enter the flow rate in m³/h. The default value is 1 m³/h which equals 4.402 GPM.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 4.402?
A: It combines 1 m³ = 264.172 gallons and 1 hour = 60 minutes (264.172/60 ≈ 4.402).

Q2: When would I need this conversion?
A: When working with international equipment specifications or converting between metric and imperial systems.

Q3: How accurate is this conversion?
A: The factor 4.402867 provides more precision if needed, but 4.402 is sufficient for most applications.

Q4: What's the reverse conversion (GPM to m³/h)?
A: Divide GPM by 4.402 or multiply by 0.2271 to get m³/h.

Q5: Does this work for any liquid?
A: Yes, as long as you're measuring volumetric flow rate (not mass flow rate).