A normal hemoglobin level varies by gender -  about 13–17 g/dL for men and 12–15 g/dL for women. It can be slightly lower in children or higher in athletes. Levels below normal indicate anemia, while higher levels may occur in dehydration or high altitudes.

Key Range Reminder

• Men: 13–17 g/dL
• Women: 12–15 g/dL
• Low = Anemia | High = Possible dehydration