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 working with fluid systems to convert between metric and imperial flow rate units.

2. How Does the Conversion Work?

The conversion uses the formula:

Where:

• \( Q_{gpm} \) — Flow rate in gallons per minute (GPM)
• \( Q_{m3h} \) — 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 (1 m³ = 264.172 gallons) and time (1 hour = 60 minutes) conversions.

3. Importance of Flow Rate Conversion

Details: Proper unit conversion ensures accurate system design, pump selection, and fluid handling in applications like water supply, HVAC, and industrial processes.

4. Using the Calculator

Tips: Simply enter the flow rate in m³/h and the calculator will automatically provide the equivalent in GPM.

5. Frequently Asked Questions (FAQ)

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

Q2: What's the reverse conversion (GPM to m³/h)?
A: Divide GPM by 4.402 or multiply by 0.227 to get m³/h.

Q3: How accurate is this conversion?
A: The conversion is mathematically exact, though practical applications may require rounding.

Q4: When would I need this conversion?
A: When working with equipment specifications or standards that use different unit systems (e.g., European pumps vs. American piping).

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