Standard Temperature and Pressure Calculator

Enter value and click on calculate. Result will be displayed.

Volume at STP = Volume x ( 273.15 / Temperature ) x ( Pressure / 760 )
Moles at STP = Volume at STP / 22.4

Volume:
Liters
Temperature:
Kelvin
Pressure:
Torr
Volume at STP:
Moles at STP:

A Standard Temperature and Pressure (STP) calculator is used to determine the volume, pressure, or temperature of gases under standard conditions, which are essential for many scientific and engineering calculations.

What is STP?
STP refers to a set of conditions used for experiments involving gases, standardized to allow comparisons between different experiments. These conditions are:

Temperature: 0°C (273.15 K)
Pressure: 1 atmosphere (atm) or 101.325 kPa
Why STP is important?
STP provides a reference for the behavior of gases, helping scientists and engineers to simplify calculations using the ideal gas law or gas laws in general. It helps in comparing results from different experiments by providing a uniform baseline.

How STP is used:
Ideal Gas Law: STP conditions are often plugged into the ideal gas law equation,

PV=nRT,

where:
P is pressure
V is volume
n is moles of gas
R is the ideal gas constant
T is temperature
Conversions: If you're dealing with gases at non-STP conditions and want to convert them to STP, the calculator will apply gas law principles to adjust volume, pressure, or temperature accordingly.
When is STP used?
STP is used in:

Chemical reactions involving gases
Calculations involving the molar volume of a gas (usually 22.4 L per mole at STP)
Calibration of equipment in laboratories
A calculator simplifies these conversions, helping you quickly find answers when dealing with gases at different conditions.