Pipe Flow Velocity
Calculate velocity from flow rate and diameter
Input Parameters
Valid
Velocity
0.00 m/s
Formula
v (m/s) = Q / A = Q / (π × (D/2)²)
Fill in the values on the left and click Calculate to see your result.
Formula
v (m/s) = Q / A = Q / (π × (D/2)²)
Flow velocity is calculated by dividing volumetric flow rate by cross-sectional area.
Assumptions
- Average velocity in cross-section
- Incompressible fluid
Step 1: Convert flow rate
100 L/min ÷ 60,000 = 0.00167 m³/s
Step 2: Calculate area
π × (25/2000)² = 0.000491 m²
Step 3: Apply formula
0.00167 / 0.000491 = 3.40 m/s
Frequently Asked Questions
Why is flow velocity important?
It affects pressure drop, energy consumption, and system efficiency.