Water Density Compensated Universal Fluid Head Calculator
Select Input Unit:
S.G.: Lb/Gallon: Lb/in³: Kg/m³:
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°F: °C: K: °R:
Water Density (kg/m³):  
Inches of Liquid: PSI:
Specific Gravity (S.G.):  
Lb / Gallon:  
Lb / in³:  
Kg / m³:  
Inches of Water (inH₂O):  
Result (PSI): Result (Inches of Liquid):  

Water Densities per this page.

Pressure Conversions
Inches of Fluid ⮕ PSI

Inches of Fluid to PSI Equation
Plain Text Formula: (Inches of Liquid) * Specific Gravity of Liquid * Density of Water (kg/m³) * (1 (lb/in³)/27679.90471(kg/m³))= PSI (lb/in²)
CodeCogs/LaTex: \[(Inches\,of\, \:Liquid)*S.G.*Density\, of\, Water(\frac{kg}{m^{3}})*\frac{1\,(\frac{lb}{in^{3}})}{27679.90471\,(\frac{kg}{m^{3}})}=PSI(\frac{lb}{in^{2}})\]
PSI ⮕ Inches of Fluid

PSI to Inches of Fluid Equation
Plain Text Formula: PSI (lb/in²)* (27679.90471(kg/m³) / 1 (lb/in³))*(1/Density of Water (kg/m³))*(1/(S.G.))= Inches of Liquid
CodeCogs/LaTex: PSI(\frac{lb}{in^{2}})*\frac{27679.90471\,(\frac{kg}{m^{3}})}{(\frac{lb}{in^{3}})}*\frac{1}{Density\, of\, Water(\frac{kg}{m^{3}})}*\frac{1}{S.G.}=Inches\, of\,\: Liquid


DENSITY CONVERSIONS FROM S.G.
S.G ⮕ Kg/m³

Specific Gravity to kilograms over meteres cubed equation
Plain Text Formula: Specific Gravity of Liquid * Density of Water (kg/m³) = Density of Liquid (kg/m³)
CodeCogs/LaTex: \[ S.G.*Density\:of\:Water(\frac{kg}{m^{3}})=Density\:of\:Liquid(\frac{kg}{m^{3}})\]
S.G ⮕ Lb/Gallon

Specific Gravity to pounds per gallon equation
Plain Text Formula: Specific Gravity of Liquid * Density of Water (kg/m³) * (1 (lb/in³)/27679.90471(kg/m³))*(231 (in³)/1 Gallon) = Density of Liquid (lb/gallon)
CodeCogs/LaTex:\[S.G.*Density\,\:of\,Water(\frac{kg}{m^{3}})*\frac{1\,(\frac{lb}{in^{3}})}{27679.90471\,(\frac{kg}{m^{3}})}*\frac{231\,in^{3}}{1\,Gallon}=Density\,of\,Liquid(\frac{lb}{gallon})\]
S.G ⮕ Lb/in³

Specific Gravity to pounds per inch cubed equation
Plain Text Formula: Specific Gravity of Liquid * Density of Water (kg/m³) * (1 (lb/in³)/27679.90471(kg/m³)) = Density of Liquid (lb/in³)
CodeCogs/LaTex: \[S.G.*Density\, of\, Water(\frac{kg}{m^{3}})*\frac{1\,(\frac{lb}{in^{3}})}{27679.90471\,(\frac{kg}{m^{3}})}=Density\, of\, Liquid(\frac{lb}{in^{3}})\]


DENSITY CONVERSIONS TO S.G.
Kg/m³ ⮕ S.G.

kilogram per meters cubed to specific gravity equation
Plain Text Formula:(Density of Liquid (kg/m³)/Density of Water (kg/m³)) = Specific Gravity of Liquid
CodeCogs/LaTex:\[\frac{Density\,of\,Liquid(\frac{kg}{m^{3}})}{Density\,\:of\,Water(\frac{kg}{m^{3}})}=S.G.\]
Lb/Gallon ⮕ S.G.

pounds per gallon to specific gravity equation
Plain Text Formula:Density of Liquid (lb/gallon)*(1 Gallon/231 (in³))*(27679.90471(kg/m³)/1 (lb/in³))*(1/Density of Water (kg/m³)) = Specific Gravity of Liquid
CodeCogs/LaTex:\[Density\,of\,Liquid(\frac{lb}{gallon})*\frac{1\,Gallon}{231\,in^{3}}*\frac{(27679.90471\,\frac{kg}{m^{3}})}{(\frac{lb}{in^{3}})}*\frac{1}{Density\,\:of\,Water(\frac{kg}{m^{3}})}=S.G.\]
Lb/in³ ⮕ S.G

pounds per inch cubed to specific gravity equation
Plain Text Formula:Density of Liquid (lb/in³)*(27679.90471(kg/m³)/1 (lb/in³))*(1/Density of Water (kg/m³)) = Specific Gravity of Liquid
CodeCogs/LaTex: \[Density\,of\,Liquid(\frac{lb}{in^{3}})*\frac{(27679.90471\,\frac{kg}{m^{3}})}{(\frac{lb}{in^{3}})}*\frac{1}{Density\,\:of\,Water(\frac{kg}{m^{3}})}=S.G.\]