1. What is a m³/h to GPM Calculator?

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

Purpose: It helps engineers, plumbers, and technicians convert between metric and imperial flow rate units.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q_{gpm} \) — Flow rate in gallons per minute (GPM)
• \( Q_{m3h} \) — Flow rate in cubic meters per hour (m³/h)

Explanation: The conversion factor 4.402 comes from the relationship between cubic meters and gallons, and hours to minutes.

3. Importance of Flow Rate Conversion

Details: Accurate flow rate conversion is essential for system design, pump selection, and process control in both metric and imperial unit systems.

4. Using the Calculator

Tips: Simply enter the flow rate in cubic meters per hour (m³/h) and the calculator will provide the equivalent in gallons per minute (GPM).

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 4.402?
A: It combines the conversion from cubic meters to gallons (264.172) and hours to minutes (1/60), resulting in 264.172/60 ≈ 4.402.

Q2: When would I need this conversion?
A: When working with international specifications, equipment with different unit systems, or comparing flow rates from different sources.

Q3: How accurate is this conversion?
A: The conversion is mathematically precise, though actual flow measurements may have instrument-related uncertainties.

Q4: What's the reverse conversion (GPM to m³/h)?
A: Divide GPM by 4.402 or multiply by 0.227 to get m³/h.

Q5: Does this work for all liquids?
A: Yes, the conversion is based on volume flow rate and is independent of the liquid being measured.