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Ideal Gas Law Calculator

Calculate Ideal Gas Law Parameters
Select Answer Mode
Pressure (P) [?]
Volume (V) [?]
Amount Of Substance (n) [?]
Temperature (T) [?]

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✕ clear settings

Change the answer mode for this tool by selecting gas pressure (P), gas volume (V), amount of substance of gas (n) or gas temperature (T) as the parameter to calculate instead



Absolute pressure measurement products
  • DMP331i High Accuracy Pressure Transmitter
  • Wind turbine USB PC logging pressure & temperature sensor
  • 1.6 bar absolute range 4-20mA output ceramic diaphragm pressure sensor
  • Vacuum digital gauge to measure 0 to 1000 mbar absolute

Request info on absolute pressure measurement products for your application.

Contents

  • Related Tools
  • User Guide
    • Formulas
      • Symbols
    • Pressure (P)
    • Volume (V)
    • Amount Of Substance (n)
    • Temperature (T)

Related Tools

  • Boyle’s law calculator
  • Charles’ law calculator
  • Avogadro’s law calculator
  • Gay-Lussac’s law calculator
  • Combined gas law calculator
  • Pressure units conversion
  • Volume units conversion
  • Temperature units conversion

User Guide

This tool will calculate any parameter from the equation for the ideal gas law, which includes  the pressure, volume, amount of substance and temperature of a quantity of gas.

Formulas

The Ideal gas law is explained with math in the following way.

Using SI units for each parameter, the multiplying together of pressure and volume will equal the multiplying together of the amount of substance, the temperature and the ideal gas constant.

P · V = n · R · T

The formulas used by this ideal gas law calculator to determine each individual parameter are:

P =  n · R · T / V

V = n · R · T / P

n = P · V / (R · T)

T = P · V / (n · R)

Symbols

  • P = Pressure of gas
  • V = Volume of gas
  • n = Amount of substance of gas
  • R = Ideal gas constant (8.31446261815324 J⋅K-1⋅mol-1)
  • T = Temperature of gas

Pressure (P)

This is the absolute pressure of the gas.

Volume (V)

This is the total volume occupied by the gas.

Amount Of Substance (n)

This is the number of gas atoms or molecules that are included in the quantity of gas.

Temperature (T)

This is the temperature of the gas.

Temperature measurement products
  • 14…140°F Temperature Range Sensor with 4-20mA Current Output Signal Transmitter
  • 32…95°F Temperature Range Sensor with 4-20mA Current Output Signal Transmitter
  • 50m seawater depth and temperature sensor with SDI-12
  • 4T48 Digital Panel Meter

Request info on temperature measurement products for your application.

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Tool Feedback

Please provide feedback on using this Ideal Gas Law Calculator.

Measure Temperature In A Liquid

Submerge this STT-26 Probe to measure the temperature of a liquid and transmit a 4-20mA current loop output signal.
Submerge this STT-26 Probe to measure the temperature of a liquid and transmit a 4-20mA current loop output signal.

Product Selection Guides

  • Differential Pressure Sensors
  • Digital Pressure Gauges
  • Digital Pressure Sensors
  • Digital Readouts
  • Hydrostatic Liquid Level Sensors
  • Millivolt Output Pressure Transducers
  • Pressure Transducers
  • Pressure Transmitters
  • Voltage Output Pressure Transducers

Application Selection Guides

  • Absolute Pressure
  • Dual Temperature and Pressure
  • Flush Diaphragm
  • High Frequency Response
  • Leak Testing
  • Low Pressure Range
  • Oxygen Service
  • Submersible
  • Vacuum

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