Inputs
- Free-air flow
- Flow unit
- Internal diameter
- Working pressure
Pipe velocity
Compressed Air Velocity Calculator
Calculate estimated compressed-air velocity inside a tube or pipe from free-air flow, internal diameter, and working pressure.
Pipe velocity
Run the calculation
Calculate estimated compressed-air velocity inside a tube or pipe from free-air flow, internal diameter, and working pressure.
Engineering visual
Air Velocity Calculator calculation map
Airflow moves through a pipe with defined inside diameter and length; fittings and wall friction consume pressure along the route.
- 01Free-air flow
- 02Calculate and compare
- 03Velocity in m/s
Calculation reference
What this tool checks.
The calculation converts free-air flow to line-pressure flow, then divides by the tube or pipe internal area.
Outputs
- Velocity in m/s
- Velocity in ft/s
- Working flow
- Review note
Engineering guide
Use the result with the right context.
Calculate air velocity calculator from application data and interpret the result for preliminary pneumatic engineering review.
Enter the known application values, including Free-air flow, Flow unit, Internal diameter.
Run the calculation using one consistent set of units and reference conditions.
Review Velocity in m/s, Velocity in ft/s, Working flow, then compare the result with the component datasheet and application margin.
Treat catalog flow coefficients and conductance values as component-specific data measured under stated reference conditions.
Validate tubing, fittings, silencers, manifolds, temperature, and simultaneous demand as part of the complete flow path.
How the Air Velocity Calculator works
This calculator turns Free-air flow, Flow unit, Internal diameter into Velocity in m/s, Velocity in ft/s, Working flow. The governing relationship remains visible in the dedicated formula area so the result can be checked against a worksheet, supplier data, or measured machine values.
How to interpret the result
Use the output as a transparent first-pass engineering estimate, not an automatic product approval. Compare the calculated value with available catalog ratings, transient conditions, installation losses, service environment, and a safety margin appropriate to the machine risk.
Limits and verification
Treat catalog flow coefficients and conductance values as component-specific data measured under stated reference conditions. Validate tubing, fittings, silencers, manifolds, temperature, and simultaneous demand as part of the complete flow path. The final selection remains subject to the actual component datasheet, applicable standards, and validation on the installed system.
FAQ