Introduction: Gingivitis is one of the periodontium disorders which is characterized by an increase of Gingival Crevicular Fluid (GCF). GCF can be used as alternative diagnostic media to detect the severity of inflammation occurs. One of various index that can be used to assess the severity degree of gingivitis with minimal instrument is Modified Gingival Index (MGI). The aim of this study to determine the correlation between severity degree of gingivitis measured by MGI with GCF volume. Methods: Cross-sectional study was conducted to 24 respondents were examined and equally divided into four groups based on their MGI scores, normal periodontium group, mild gingivitis group, moderate gingivitis group, and severe gingivitis group. GCF samples were collected by inserting pa- perpoint no. 25 into gingival sulcus for 30 seconds. These paperpoints were placed in eppendorf tubes with 250μL of Phosphate Buffer Saline. Mass measurements were taken on each eppendorf tube used analytical balance then mass being converted to volume with a physical formula to determine the GCF volume absorbed. Results: Mean of GCF volume recorded in normal group, mild gingivitis group, moderate gingivitis group, and severe gingivitis group were: 0.2591μL, 0.4205μL, 0.6495μL, 0.8963μL respectively. Spearman test results showed a significance value <0,05. Conclusion: This study concludes that there is a relation between the severity degree of gingivitis with volume of GCF and the increase in GCF volume occurs along with the increase in gingivitis severity.