ENGINEERING HUB
Measure clearly.
Calculate consistently.
Practical SI tools for commissioning checks. Each result shows its assumptions and method so it can be checked against the approved design.
CALCULATOR
Pressure & airflow units
Convert within pressure or volume-flow units while keeping the same reference conditions.
Pressure base unit: Pa. Volume-flow base unit: m³/s. One international foot is exactly 0.3048 m.
Changing pressure units does not convert gauge to absolute pressure. Conventional water-column pressure is different from metres of head of a fluid with another density. Actual and standard CFM need condition corrections beyond unit conversion.
The pre-filled numbers are illustrative examples. Replace them with measured values or verified project inputs. Calculations do not save data or alter equipment.