Skip to content

Urine Osmolality by age and sex

How the usual range for urine osmolality changes with age, as labs print it.

AI-verified against cited sources. Awaiting expert review

The usual range at every age

The reference range labs print, for each age group. Ranges differ a little between labs, so the range on your own report is the one your result is judged against.

Use the left and right arrow keys to step through the age groups. Every range is also in the table below.

Usual range of Urine Osmolality by age, in mOsm/kg
WhoUsual range
under 0.083350–645 mOsm/kg
0.0833–1650–1,500 mOsm/kg
17+50–1,400 mOsm/kg

Sources: ARUP Laboratories, Labcorp