Normal hemoglobin levels vary depending on sex. Generally, the normal ranges are:
- Male: 13.8 to 17.2 grams per deciliter (g/dL) or 138 to 172 grams per liter (g/L)
- Female: 12.1 to 15.1 g/dL or 121 to 151 g/L
Factors like age, altitude, and overall health can influence these values. It's important to consult a healthcare professional for accurate interpretation of your specific hemoglobin levels.