1. What is GPM to m³/h Conversion?

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

Purpose: It helps engineers, plumbers, and technicians work with flow rates in different measurement systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

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

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

3. Importance of Flow Rate Conversion

Details: Converting between GPM and m³/h is essential when working with international standards, equipment specifications, or hydraulic calculations.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 4.402?
A: It combines 1 gallon = 0.00378541 m³ and 1 hour = 60 minutes (1/0.00378541/60 ≈ 4.402).

Q2: What's a typical GPM value for household plumbing?
A: Standard faucets flow at 1-2 GPM, while showerheads typically use 2.5 GPM.

Q3: How accurate is this conversion?
A: Very accurate for water at standard conditions. For other fluids, density may affect mass flow rate.

Q4: When would I need to convert GPM to m³/h?
A: When working with international equipment specifications, metric system calculations, or comparing flow rates.

Q5: Can I convert m³/h back to GPM?
A: Yes, multiply m³/h by 4.402 to get GPM (the inverse operation).