LPG AM3 to KG/NM3/SM3 Conversion

This helps you to convert AM3 to KG/NM3/SM3. Will be helpful to understand actual flow of LPG in kgs from a mechanical flow meter reading.

LPG Composition

Ideally we can take default values for Indian LPG. You can change the % composition if you wish to.

Propane (C3H8)(Required)

Please enter a number from 0 to 100.

Propylene (C3H6)(Required)

Please enter a number from 0 to 100.

n-Butane (C4H10)(Required)

Please enter a number from 0 to 100.

Iso-butane (C4H10)(Required)

Please enter a number from 0 to 100.

Butylene (C5H8)(Required)

Please enter a number from 0 to 100.

Pentane (C5H12)(Required)

Please enter a number from 0 to 100.

Pentene (C5H10)(Required)

Please enter a number from 0 to 100.

Ethane (C2H6)(Required)

Please enter a number from 0 to 100.

Ethylene (C2H4)(Required)

Please enter a number from 0 to 100.

Total Percentage

Flow, Temperature and Pressure

Please Check!
Total composition can not be more or less than 100%.

Flow in AM³(Required)

Temperature (in °C)(Required)

Gauge Pressure (in bar)(Required)

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Z Factor Calculation

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Propane Z Factor

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Propane Molar Volume (L/mol)

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Propane Density (kg/m³)

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Propylene Z Factor

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Propylene Molar Volume (L/mol)

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Propylene Density (kg/m³)

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n-Butane Z Factor

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n-Butane Molar Volume (L/mol)

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n-Butane Density (kg/m³)

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Iso-butane Z Factor

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Iso-butane Molar Volume (L/mol)

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Iso-butane Density (kg/m³)

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Butylene Z Factor

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Butylene Molar Volume (L/mol)

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Butylene Density (kg/m³)

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Pentane Z Factor

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Pentane Molar Volume (L/mol)

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Pentane Density (kg/m³)

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Pentene Z Factor

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Pentene Molar Volume (L/mol)

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Pentene Density (kg/m³)

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Ethane Z Factor

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Ethane Molar Volume (L/mol)

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Ethane Density (kg/m³)

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Ethylene Z Factor

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Ethylene Molar Volume (L/mol)

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Ethylene Density (kg/m³)

Density

Please Check!
Temperature and Gauge Pressure is required to calculate the Density.

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Absolute Pressure

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Temperature in Kelvin

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R Gas Constant

Z Factor

The weighted average of the Z Factor is calculated using the Peng-Robinson Equation, based on the percentage composition.

Molecular Weight

Density

Conversion to KG, SM³ and NM³

Please Check!
Flow in AM³ is required for conversion.

in KG

at actual temperature and gauge pressure

in SM³ (SCMH)

at 15 °C and 1 ATM

in NM³

at 0 °C and 1 ATM

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LPG AM3 to KG/NM3/SM3 Conversion