Question 1

What is a Flow Rate Calculator?

Accepted Answer

Flow rate (Q) is the volume of fluid passing a cross-section per unit time. The continuity equation Q = A × v is fundamental to plumbing, HVAC, hydraulics, and engineering.

Question 2

How does the Flow Rate Calculator work?

Accepted Answer

Q = A × v (m³/s; A in m², v in m/s) Then: Continuity: A₁v₁ = A₂v₂ (fluid speeds up in narrower sections) Then: 1 m³/s = 1,000 L/s = 60,000 L/min Then: Use consistent units throughout.

Question 3

Can you give an example of how to use the Flow Rate Calculator?

Accepted Answer

Example: Input Pipe area 0.03m², velocity 2m/s gives a result of Q = 0.03 × 2 = 0.06 m³/s = 60 L/s = 3,600 L/min.

Question 4

Is the Flow Rate Calculator free to use?

Accepted Answer

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

Question 5

How accurate is the Flow Rate Calculator?

Accepted Answer

Our Flow Rate Calculator uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

Flow Rate Calculator

Flow Rate Calculator (Q = A × v)

What is Flow Rate Calculator?

How to Use Flow Rate Calculator

Example Flow Rate Calculator

Typical Flow Rates

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