Estimate gas volume at STP (0°C, 1 atm).
Volume at STP (V)
22.414 L
V = n × 22.414 L/mol
STP = 273.15 K, 101.325 kPa
Standard Temperature and Pressure (STP) are common reference conditions used to compare gas volumes. The most common values are 0 °C (273.15 K) and 1 atmosphere (101.325 kPa).
Enter the amount of gas in moles. The tool computes the volume at STP automatically.
1 mol → 22.414 L at STP.
Q: Are there different STP definitions? A: Yes — some references use 1 atm, some 100 kPa. This tool uses 1 atm (22.414 L/mol).
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