# NM3/hr and SM3/hr gas flow Conversion Calculator

This Calculator will do the  conversion  NM3/hr to SM3 /hr or  SM3/hr to NM3 /hr for you.

## Conversion Facts:

NTP : Normal Temperature and Pressure       Temperature :  0 oC (273.15 K, 32 oF)             International Reference Variable

Pressure :   1 atm ( 1 bar , 1.01 325 kPa)

STP : Standard Temperature and Pressure               Temperature : Your Site Temperature / or Contract Temperature

Pressure : 1 atm ( 1 bar , 1.01325 kPa)

## Gas Flow at Normal Condition NM3 /hr

V = Volumetric Gas Flow                                               T = Gas Temperature

TN = Normal Atmospheric Temperature  (0 oC)

P = Gas Pressure                                         PN = Atmospheric Pressure

Formulae:

NM3 /hr = V x ( TN /T) x (P/PN)

## Gas Flow at Standard Condition SM3 /hr

V = Volumetric Gas Flow                                           T = Gas Temperature

TS = Standard Atmospheric Temperature   ( Site Temperature or Contractual Temperature)

P = Gas Pressure                                         PN = Atmospheric Pressure

Formulae:

SM3 /hr = V x ( TS/T) x (P/PN)

Final Formulae: