Fluid Properties

Density and Kinematic Viscosity of Liquids and Gases: Water, Seawater, Oil, Gasoline, Mercury, Air, Carbon Dioxide, Nitrogen, Helium

Values in tables were compiled from the references listed under Discussion and References.

LMNO Engineering Home Page        Unit Conversions

Symbols:
p (greek letter rho) = Density (units are mass/volume).  The English (U.S. Customary Unit) for mass is the slug.  The SI (metric) unit for mass is the kg.
v (greek letter nu) = kinematic viscosity (units are length squared/time).  If you're more familiar with dynamic viscosity µ (greek letter mu), then it may help to know that  v = µ/p.

Table of Fluid Properties (Liquids and Gases)

Fluid T
(°F)
Density
(slug/ft3)
v
(ft2/s)
T
(°C)
Density
(kg/m3)
v
(m2/s)
Liquids:
Water 70 1.936 1.05e-5 20 998.2 1.00e-6
Water 40 1.94 1.66e-5 5 1000 1.52e-6
Seawater 60 1.99 1.26e-5 16 1030 1.17e-6
SAE 30 oil 60 1.77 0.0045 16 912 4.2e-4
Gasoline 60 1.32 4.9e-6 16 680 4.6e-7
Mercury 68 26.3 1.25e-6 20 13600 1.15e-7
 
Gases (at standard atmospheric pressure, i.e. 1 atm):
Air 70 0.00233 1.64e-4 20 1.204 1.51e-5
Carbon Dioxide 68 0.00355 8.65e-5 20 1.83 8.03e-6
Nitrogen 68 0.00226 1.63e-4 20 1.16 1.52e-5
Helium 68 3.23e-4 1.27e-3 20 0.166 1.17e-4

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(Febrary 18, 2010: corrected Helium ft2/s and m2/s)