Volumetric Flow Rate Calculator
Calculate volumetric flow rate (Q) using cross-sectional area and fluid velocity. Supports multiple unit conversions for area and velocity.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Volumetric Flow Rate Calculator
- Enter the Cross-Sectional Area (e.g., pipe area) in the first field. Choose the correct unit (m², cm², mm², ft², or in²).
- Enter the Fluid Velocity in the second field. Select the appropriate unit (m/s, cm/s, ft/s, or in/s).
- Select the Desired Result Unit from the dropdown (e.g., m³/s, L/min, gal/min).
- Click "Calculate Flow Rate". The result appears below, showing the flow rate in your chosen unit and the formula breakdown.
Important Notes:
- All inputs must be positive numbers. Negative or zero values will show an error.
- The calculator automatically converts between metric and imperial units (e.g., ft² to m², ft/s to m/s).
- The formula used is Q = A × v (flow rate = area × velocity).
Previous Results
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Frequently Asked Questions
Volumetric flow rate is the volume of fluid that passes through a given cross-sectional area per unit time. It is calculated as Q = A × v, where A is the cross-sectional area and v is the fluid velocity.
Area units: m², cm², mm², ft², in². Velocity units: m/s, cm/s, ft/s, in/s. Result units: m³/s, m³/h, L/s, L/min, gal/min, ft³/s.
Yes, the calculator works for any fluid (liquid or gas) as long as you provide the cross-sectional area and velocity.