1. What is Flow Rate Conversion?

Flow rate conversion between cubic meters per hour (m³/hr) and gallons per minute (GPM) is essential for engineers, technicians, and professionals working with fluid systems across different measurement standards.

2. How Does the Calculator Work?

The calculator uses the conversion formula:

Where:

• \( m³/hr \) — Flow rate in cubic meters per hour
• \( 4.402867539302473 \) — Conversion factor from m³/hr to GPM
• \( GPM \) — Result in gallons per minute

Explanation: This conversion accounts for the volume difference between cubic meters and gallons, and the time conversion from hours to minutes.

3. Importance of Flow Rate Conversion

Details: Accurate flow rate conversion is crucial for international projects, equipment specification, pump selection, and system design where different measurement units are used.

4. Using the Calculator

Tips: Enter the flow rate in cubic meters per hour. The value must be non-negative. The calculator will instantly convert it to gallons per minute.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 4.402867539302473?
A: This factor combines the volume conversion (1 m³ = 264.172 gallons) and time conversion (1 hour = 60 minutes): 264.172 ÷ 60 = 4.402867.

Q2: When would I need to convert m³/hr to GPM?
A: Common in water treatment plants, HVAC systems, industrial processes, and when working with American equipment specifications that use GPM.

Q3: How accurate is this conversion?
A: The conversion factor is precise to 12 decimal places, making it suitable for most engineering and technical applications.

Q4: Can I convert GPM back to m³/hr?
A: Yes, use the inverse: m³/hr = GPM ÷ 4.402867539302473 or m³/hr = GPM × 0.227124.

Q5: Are there different types of gallons that affect conversion?
A: This calculator uses US gallons. For Imperial gallons, the conversion factor would be different (approximately 3.666).