Figure

HVAC

Pressure conversions

Convert pressure between water column, PSI, pascals, and kilopascals.

Pressure units describe a pressure difference. Converting between water column, PSI, pascals and kilopascals changes the unit, not the type of pressure measured. A pressure conversion alone does not determine air speed.

Convert pressure

Select Pressure, label the reading, then choose its new unit.

Start a new calculation

  1. Press Clear entry, then Clear entry.

Select Pressure

  1. Press Select pressure units.

Enter the reading

  1. Pressure reading

    Press 1, then inches of water column.

Convert to Pa

  1. Press pascals.
  1. Example result249.0889 Pa

Keep in mind

Use 2nd each time a unit is above its button. Settings → Preferred units chooses the main labels. This changes pressure units; it does not calculate air speed.

Keep the guide beside your calculation.

These examples are built into Figure. Open Help while you calculate, then return to the same guide and reading position.

See Help in Figure →