What is the average specific gravity of blood?

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What is the average specific gravity of blood?

Specific gravity shows how dense blood is compared with water. Blood’s density is a weighted mix of plasma, which is around 1.025, and the formed elements, especially red blood cells, which are denser. With a normal hematocrit (~45%), the combination yields a mean density near 1.055. In practice, blood typically ranges from about 1.050 to 1.060, and 1.055 is a commonly cited average. Hydration status and anemia can shift this value: dehydration raises it, while anemia lowers it.

Specific gravity shows how dense blood is compared with water. Blood’s density is a weighted mix of plasma, which is around 1.025, and the formed elements, especially red blood cells, which are denser. With a normal hematocrit (~45%), the combination yields a mean density near 1.055. In practice, blood typically ranges from about 1.050 to 1.060, and 1.055 is a commonly cited average. Hydration status and anemia can shift this value: dehydration raises it, while anemia lowers it.

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