Average creatinine levels can vary depending on a person’s age, sex, and muscle mass. However, average ranges are 0.7 to 1.2 milligrams per deciliter (mg/dL) for males and 0.5 to 1.0 for females.

However, 0.63 to 1.16 milligrams per deciliter (mg/dL) for males and 0.48 to 0.93 mg/dL for females is a typical range. Creatinine levels above 1.4 mg/dL for males and 1.2 mg/dL for females ...