Volumetric Flow Rate Converter

Master Fluid Dynamics with Accurate Flow Rate Conversion

Volumetric flow rate (Q) is the heartbeat of fluid systems, measuring the volume of liquid or gas passing through a point per unit of time. Our free Volumetric Flow Rate Converter is engineered for professionals who need to switch seamlessly between units. Whether you are an HVAC technician balancing air ducts (CFM), a civil engineer calculating water supply (GPM), or a scientist working with precise metric measurements (L/s), this tool ensures your data is accurate and standardized.

Avoid the risk of costly calculation errors in pipe sizing, pump selection, and ventilation design. Simply input your value, select your units, and get instant results. This tool supports all standard industry units, including cubic meters per hour (m³/h) and imperial gallons per minute.

How to Use

1. Enter Data: Input the numeric flow rate value into the "From" field.
2. Select Units: Choose your current unit (e.g., GPM) and your desired unit (e.g., L/s) from the dropdown menus.
3. Convert: Click "Convert Flow Rate" to instantly calculate the precise equivalent.
4. Copy: Use the "Copy Result" button to save the figure for your technical documentation.

Frequently Asked Questions

How do you calculate volumetric flow rate?

Volumetric flow rate (Q) equals the cross-sectional area of the pipe (A) multiplied by the fluid's average velocity (v). Formula: Q = A × v. Example: A 0.1 m² pipe with water moving at 2 m/s has a flow rate of 0.2 m³/s.

How do you convert volumetric flow rate to mass flow rate?

To get mass flow rate (ṁ), multiply the volumetric flow rate (Q) by the fluid's density (ρ). Formula: ṁ = Q × ρ. For water (1000 kg/m³), 0.2 m³/s becomes 200 kg/s.

What is the difference between mass flow and volumetric flow?

Volumetric flow measures volume (space occupied) per time unit and changes with temperature/pressure (especially for gases). Mass flow measures the actual amount of matter (weight) and remains constant regardless of conditions.

What is the formula for volumetric flow rate conversion?

Conversion relies on fixed factors. For instance, 1 GPM ≈ 0.06309 L/s or 1 CFM ≈ 1.699 m³/h. Our tool automates these factors for instant accuracy.

What is the unit of volumetric flow rate?

The standard SI unit is cubic meters per second (m³/s). Common industry units include GPM (US plumbing), CFM (HVAC air flow), and L/min (medical/laboratory gas).