🇺🇸 US Reference Range
8.4–10.2 mg/dL
🇪🇺 EU Reference Range (SI Units)
2.1–2.6 mmol/L
Mayo Clinic Reference Range
8.6–10.2 mg/dL
Note: Reference range for adults: 18-59 years: 8.6-10.0 mg/dL, ≥60 years: 8.8-10.2 mg/dL. Combined adult range: 8.6-10.2 mg/dL