Pressure Sensor Calculator

Enter your current sensor reading (4-20mA), set your pressure range limits, and select your desired pressure unit. The calculator will convert the current signal to the corresponding pressure value based on linear scaling.

4-20mA is a current loop signal that's less susceptible to electrical noise and voltage drops over long distances. 0-10V is a voltage signal that's simpler to measure but more susceptible to interference. Both can be converted to pressure using the same scaling principles.

The pressure range should match your sensor's calibrated range. Check your sensor datasheet for the minimum and maximum pressure values it's designed to measure. These correspond to 4mA (or 0V) and 20mA (or 10V) respectively.

Square root extraction is used for flow measurement applications where the pressure sensor measures differential pressure across an orifice plate. The square root function linearizes the relationship between pressure and flow rate.

Yes, you can use negative values for the low pressure limit to handle vacuum measurements. For example, set -1 bar to +1 bar for a sensor measuring both vacuum and positive pressures.

The calculation assumes a linear relationship between sensor output and pressure, which is accurate for most industrial pressure sensors. Real sensors may have small non-linearities, but this calculator provides results accurate to within typical sensor specifications.

The calculator supports common pressure units including bar, psi, kg/cm², mbar, Pascal (Pa), and kilopascals (kPa). You can easily convert between these units by changing the pressure unit selection.