Vacuum Pump Unit Conversion Calculator
Working with vacuum pumps often means converting between different pressure, flow and power units — especially when comparing pump data sheets, checking system performance or matching replacement equipment.
VacAir’s Vacuum Pump Unit Conversion Calculator is designed specifically for vacuum pump engineers, maintenance teams and OEM users who need quick and accurate conversions between the units most commonly used in industrial vacuum systems.
Use the calculator below to convert common vacuum pump measurements including:
- vacuum and pressure units such as mbar, Torr, psi, Pa and inHg
- flow rates including m³/h, litres per minute and CFM
- motor power including kW, watts and horsepower
Whether you are comparing pump specifications, diagnosing poor performance or checking system readings, this calculator provides a quick and practical reference for everyday vacuum engineering.
Important: Pressure conversions shown are unit-to-unit only and do not account for atmospheric pressure or the difference between absolute and gauge vacuum readings.
Common Vacuum Pump Unit Conversions
Vacuum pump specifications are often shown in different units depending on the manufacturer, country of origin or application. European vacuum pumps often use mbar and m³/h, while American specifications may use Torr, CFM and horsepower.
Using the correct units is particularly important when comparing vacuum pumps from brands such as DVP, Becker, Busch and Elmo Rietschle, where published specifications may use different measurement standards.
VacAir Conversion Calculator
Convert common vacuum pump industry units including pressure, vacuum, flow rate and power.
Note: Vacuum readings can be shown in different ways, including absolute pressure and gauge vacuum. Always check the scale being used before comparing readings.
Need Help Interpreting Vacuum Pump Performance?
Converting units is one thing — understanding what the numbers mean in the real world is another.
If your pump is underperforming, losing vacuum, running hot, struggling to hold pressure or no longer matching its expected performance, VacAir can help.
We supply:
- replacement vacuum pumps
- vacuum pump servicing and repair
- vacuum pump oil separators and filters
- carbon pump vanes and spare parts
- technical advice for vacuum system performance
If you are unsure whether the issue is the pump, the system, the pipework or simply the way the readings are being interpreted, contact VacAir for practical vacuum pump support.




