1. What is Mass Flow Rate Metric Units Calculator?

Definition: This calculator converts volumetric flow rate (GPM) to mass flow rate (kg/s) using the fluid density.

Purpose: It helps engineers and technicians convert between volumetric and mass flow measurements in metric units.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( W \) — Mass flow rate (kg/s)
• \( Q \) — Volumetric flow rate (gallons per minute)
• \( \rho \) — Fluid density (kg/L, ~1 for water)

Explanation: The formula converts GPM to liters per second (via 3600/1000 factor) and multiplies by density to get mass flow.

3. Importance of Mass Flow Rate Calculation

Details: Mass flow rate is critical for process control, chemical dosing, and systems where mass balance is more important than volume.

4. Using the Calculator

Tips: Enter the volumetric flow rate in GPM and fluid density in kg/L (default 1.0 for water). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why convert to mass flow rate?
A: Mass flow remains constant regardless of temperature/pressure changes, unlike volumetric flow.

Q2: What's a typical density value for water?
A: Pure water at 4°C has density of 1 kg/L. For most applications, 1.0 is sufficiently accurate.

Q3: How do I convert other units to GPM?
A: 1 GPM = 0.06309 L/s = 3.7854 L/min. Use our unit converter tools if needed.

Q4: When would density differ significantly from 1.0?
A: For oils, chemical solutions, or high-temperature fluids where density varies substantially.

Q5: Can I use this for gases?
A: Not directly - gas density varies greatly with pressure and temperature. Specialized calculators are needed.