1. What is a GPM Calculator for Water Flow?

Definition: This calculator converts water flow rate from cubic meters per second (m³/s) to gallons per minute (gpm).

Purpose: It helps engineers, plumbers, and water system designers 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)
• \( Q \) — Flow rate in cubic meters per second (m³/s)
• \( 15850.3 \) — Conversion factor (1 m³/s = 15850.3 gpm)

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

3. Importance of Flow Rate Conversion

Details: Accurate flow rate conversion is essential for system design, pump selection, and compliance with specifications that may use different unit systems.

4. Using the Calculator

Tips: Enter the flow rate in cubic meters per second (m³/s). The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why convert between m³/s and gpm?
A: Different regions and industries use different units, and conversions are often needed for equipment specifications and international projects.

Q2: How precise is the conversion factor?
A: The factor 15850.3 is based on the US gallon (1 m³ = 264.172 gallons) and exact time conversion (60 seconds/minute).

Q3: What's a typical flow rate in m³/s?
A: Household water supply might be 0.0005-0.001 m³/s, while large municipal systems might handle 1-10 m³/s.

Q4: Can I convert back from gpm to m³/s?
A: Yes, divide gpm by 15850.3 to get m³/s.

Q5: Does this work for other liquids besides water?
A: Yes, as long as you're only converting units (not accounting for density or viscosity differences).