Volume Flow & Area to Flow Velocity Calculator

Flow Velocity Factors
Volume Flow (Q) [?]
cu nanometres (nm³) cu micrometres (µm³) cu millimetres (mm³) cu centimetres (cc, cm³) millilitres (mL) cu inches (in³) fluid ounces (fl oz, imp) fluid ounces (fl oz, usa) pints (pt, usa liq) pints (pt, imp) litres (L) gallons (gal, usa liq) gallons (gal, imp) cu feet (ft³) barrels (bbl, oil) cu yards (yd³) cu metres (m³) kilolitres (kL) megalitres (ML) cu kilometres (km³) cu miles (mi³) cu nautical miles (nmi³)
per (/)
nanosecond (ns) microsecond (µs) millisecond (ms) second (s) minute (min) hour (hr) day (d) week (wk) month (mo) year (yr)
Flow Area (A) [?]
Select area unit sq nanometres (nm²) sq micrometres (µm²) sq millimetres (mm²) sq centimetres (cm²) sq inches (in²) sq feet (ft²) sq yards (yd²) sq metres (m²) acres (ac) hectares (ha) sq kilometres (km²) sq miles (mi²) sq nautical miles (nmi²)
Calculate Speed of Flow
Flow Velocity (v) [?]
nanometres (nm) micrometres (µm) millimetres (mm) centimetres (cm) inches (in) feet (ft) yards (yd) metres (m) kilometres (km) miles (mi) nautical miles (nmi)
per (/)
nanosecond (ns) microsecond (µs) millisecond (ms) second (s) minute (min) hour (hr) day (d) week (wk) month (mo) year (yr)

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Related Tools

Find another flow measurement calculator by clicking on the required answer which coincides with the input parameters you already know.

	vol flow	mass flow	flow speed	vol	mass	time
area	flow speed		vol flow
dia	flow speed		vol flow
w x h	flow speed		vol flow
time	vol	mass		vol flow	mass flow
vol	time				density	vol flow
mass		time		density		mass flow
density	mass flow	vol flow		mass	vol
flow speed	area, dia

• Calculate flow area from volume flow and flow speed
• Determine volume flow from area and speed of flow
• Calculate cross-sectional area of circular pipe or duct
• Calculate cross-sectional area of rectangular shaped duct
• Area units converter
• Convert volume and time to flow rate
• Volumetric flow rate units converter
• Volumetric units converter

User Guide

This tool will calculate the speed of the flow in any units from the specified volumetric flow rate for a substance passing through a known cross-sectional area. For each calculated flow speed a conversion scale will be displayed with a range of values for flow versus speed for the same cross sectional area.

Formula

The formula used by this calculator to calculate the flow velocity is:

v = Q / A

Symbols

• v = Flow velocity
• Q = Volumetric flow rate
• A = Cross-sectional area

n.b. This formula assumes uniform flow conditions within the entire cross-sectional area, without any friction losses near to surfaces.

Volumetric Flow Rate Measured

Enter the required amount of volume needed to flow pass per unit of time.

Cross-Sectional Area

Enter the cross-sectional area perpendicular to the direction of flow of the substance through a pipe, duct or channel at the point of measurement.

Flow Velocity Calculation

This is the speed of flow that will be produced by the specified volumetric flow rate and cross-sectional area

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