Information about a laboratory test
Low specific gravity can reflect more dilute urine; fluid intake and renal concentrating ability can affect the result.
The Urine Specific Gravity test assesses the concentration of dissolved particles in urine.
It is used to assess body water balance and the kidney's ability to concentrate or dilute urine.
Low specific gravity can reflect more dilute urine; fluid intake and renal concentrating ability can affect the result.
High specific gravity can reflect more concentrated urine; dehydration and substances such as glucose or protein can affect the result.
Start with the performing laboratory's reference interval, method, collection conditions and reporting unit. Urinalysis findings do not establish a diagnosis on their own.
>= 1.005 – <= 1.03 ratio
Sourced reference context for Urine Specific Gravity
This is sourced example reference/clinical-context information; the user's own laboratory report and specimen conditions take priority.
Reference ranges may vary by laboratory, method used, age, sex, pregnancy status, and clinical context. The reference range on your own laboratory report takes precedence.
Start with the performing laboratory's reference interval, method, collection conditions and reporting unit. Urinalysis findings do not establish a diagnosis on their own. Interpretation may be more informative when related urine parameters are considered together.
Urinalysis — U.S. National Library of Medicine (MedlinePlus)
Government medical reference · 2025 · Urinalysis components, routine use and qualitative normal findings · Verified: Aug 12, 2026
Urine specific gravity test — U.S. National Library of Medicine (MedlinePlus)
Government medical reference · 2025 · Urine specific gravity purpose and example reference interval · Verified: Aug 12, 2026
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