Pressure To Voltage Calculator

Creator: Christopher Jones · Reviewed by Anthony Lorusso and Cierra Benson

Calculate pressure to voltage with ease. Find sensor output voltage or pressure from voltage using our simple linear conversion calculator.

Sensor Specifications

Enter the sensor's specified pressure and voltage range (from its datasheet). Quick presets fill common voltage ranges — you can still edit them.

0–10 V 0–5 V 1–5 V 1–6 V 1–10 V 0.5–4.5 V (ratiometric)

Sensor Minimum Pressure (Pmin)

Sensor Maximum Pressure (Pmax)

PSI

Voltage at Minimum Pressure (Vmin)

Voltage at Maximum Pressure (Vmax)

Vout = Vmin + ((P−Pmin)÷(Pmax−Pmin))×(Vmax−Vmin)

Applied Pressure (P)

Pressure-to-Voltage — Equation Reference

Equation	Solves For	Notes
Vout = Vmin + ((P−Pmin)÷(Pmax−Pmin))×(Vmax−Vmin)	Output voltage	General linear transducer formula
Vout = 10×((P−Pmin)÷(Pmax−Pmin))	Output voltage	Special case: 0–10 V sensor
Vout = 10 × P÷Pmax	Output voltage	0–10 V sensor with Pmin = 0
P = Pmin + ((Vout−Vmin)÷(Vmax−Vmin))×(Pmax−Pmin)	Applied pressure	Rearranged for reverse lookup

⚠ Always confirm the sensor's actual specified pressure and voltage range from its datasheet — do not assume a standard range. This calculation assumes ideal sensor linearity and does not account for accuracy/error tolerance, temperature drift, or non-linearity specified in the datasheet.

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A Pressure To Voltage calculator makes sensor math easy. It turns pressure into a voltage value. It can also turn voltage back into pressure. This tool uses a linear sensor range. You enter the low and high pressure. Then you enter the low and high voltage. The calculator does the rest.

Pressure To Voltage Formula

The main formula is:

Vout = Vmin + ((P - Pmin) / (Pmax - Pmin)) × (Vmax - Vmin)

Here, P means applied pressure. Pmin is the low pressure. Pmax is the high pressure. Vmin is the low voltage. Vmax is the high voltage. Vout is the output voltage.

The reverse formula is:

P = Pmin + ((Vout - Vmin) / (Vmax - Vmin)) × (Pmax - Pmin)

This formula finds pressure from a known voltage. Think of the sensor range like a ruler. The pressure picks a spot on the ruler. The voltage then shows the same spot on its own scale.

How to Use Online Pressure To Voltage Calculator

Enter the sensor minimum pressure. Use the unit shown on the tool.
Enter the sensor maximum pressure. It must be above the low value.
Enter the voltage at both pressure ends. For example, you may use 0 V and 10 V.
Enter the applied pressure. The value must stay within the sensor range.
Click calculate. The tool shows the output voltage. You can also use the reverse mode to find pressure from measured voltage.

The tool checks your input first. It won't accept a pressure below the low limit. It also won't accept a pressure above the high limit. The same rule applies to voltage in reverse mode.

Example Pressure To Voltage Calculation

Suppose a sensor reads 0 to 100 PSI. Its output is 0 to 10 V. Now, the applied pressure is 40 PSI.

First, find the pressure share:

(40 - 0) / (100 - 0) = 0.40

Now, find the output voltage:

Vout = 0 + 0.40 × (10 - 0)

Vout = 4 V

So, the sensor output is 4 V at 40 PSI.

Now try the reverse. Say the meter shows 7 V.

P = 0 + ((7 - 0) / (10 - 0)) × (100 - 0)

P = 70 PSI

So, 7 V means 70 PSI for this sensor.

The calculator supports PSI, bar, kPa, MPa, atm, and kg/cm². Keep all pressure values in the same unit. The tool does not change one pressure unit into another.

Final Verdict

A Pressure To Voltage calculator saves time and cuts down math errors. It uses a simple linear scale. Enter the sensor range and your input value. Then, you’ll get the matching voltage or pressure. This works well for many linear pressure transducers and sensor checks.

FAQs

What is a Pressure To Voltage calculator?

It finds voltage from pressure. It can also find pressure from voltage.

What is the Pressure To Voltage formula?

The formula is:

Vout = Vmin + ((P - Pmin) / (Pmax - Pmin)) × (Vmax - Vmin)

Can I convert voltage to pressure?

Yes. Use the reverse formula in the Voltage to pressure conversion calculator.

Can I use PSI, bar, or kPa?

Yes. The calculator offers PSI, bar, kPa, MPa, atm, and kg/cm². Keep the same unit for all pressure values.

What happens if my pressure is outside the sensor range?

The calculator shows an error. It does not use values outside the set pressure range.

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