# Degree of Saturation

Degree of saturation, abbreviated as S, a dimensionless number, is the ratio of volume of water to the volume of voids.

## Degree of Saturation formulas

\(\large{ S = \frac{V_w}{V_v } \; 100 }\) | |

\(\large{ S = \frac{w \; G_s }{ e } }\) |

### Where:

\(\large{ S }\) = degree of saturation (expressed as %)

\(\large{ G_s } \) = specific gravity of soil

\(\large{ e }\) = void ratio

\(\large{ V_v }\) = volume of voids (air and water)

\(\large{ V_w} \) = volume of water

Tags: Equations for Volume Equations for Soil Equations for Geotechnical