What is the normal value of total body water?

Age 12–18 years

Age 19–50 years

Age 51 years and older

Male

Average: 59%

Range: 52–66%

Average: 59%

Range: 43–73%

Average: 56%

Range: 47–67%

Female

Average: 56%

Range: 49–63%

Average: 50%

Range: 41–60%

Average: 47%

Range: 39–57%