1. What is a kg/hr to GPM Calculator?

Definition: This calculator converts water flow rate from kilograms per hour (kg/hr) to gallons per minute (GPM).

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

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Flow rate in gallons per minute (GPM)
• \( W \) — Flow rate in kilograms per hour (kg/hr)
• 3.785 — Conversion factor (liters per gallon)
• 60 — Conversion factor (minutes per hour)

Explanation: The formula converts kg/hr to liters/hr (since 1 kg water = 1 liter), then to gallons/hour, and finally to gallons/minute.

3. Importance of Flow Rate Conversion

Details: Accurate flow rate conversion is essential for system design, pump sizing, and ensuring proper water distribution in both metric and imperial measurement systems.

4. Using the Calculator

Tips: Enter the water flow rate in kg/hr. The value must be > 0. The calculator assumes water at standard conditions (1 kg = 1 liter).

5. Frequently Asked Questions (FAQ)

Q1: Why is 3.785 used in the formula?
A: 3.785 liters equals 1 gallon, which is necessary for converting between metric and imperial volume units.

Q2: Does this work for fluids other than water?
A: No, this calculator is specific to water. Other fluids require density corrections since 1 kg ≠ 1 liter for most fluids.

Q3: How accurate is this conversion?
A: Very accurate for pure water at standard temperature (4°C). For other temperatures, minor density variations occur but are negligible for most applications.

Q4: What's the practical use of this conversion?
A: Useful when working with equipment specifications that use different units, or when integrating systems that use different measurement standards.

Q5: Can I convert GPM back to kg/hr?
A: Yes, use the inverse formula: W = Q × 3.785 × 60