Corrected Calcium Calculator

Lab Values

Enter your laboratory values to calculate corrected calcium

mg/dL
g/dL
g/dL

Corrected Calcium

9.50 mg/dL
Normal Range: 8.5-10.2 mg/dL
Normal
Calcium levels are within normal range

Important Disclaimer

This calculator provides an estimation of corrected calcium and is not a substitute for clinical judgment or direct laboratory measurement. The formula used has known limitations and may be inaccurate in certain medical conditions, including critical illness, kidney disease, and liver disease. All medical decisions should be made in consultation with a qualified healthcare provider.

Formula Used

Payne Formula (US Units): Corrected Ca (mg/dL) = Total Ca + 0.8 × (4.0 - Albumin)

This formula estimates what your total calcium would be if your albumin level were normal.

Corrected Calcium Calculator FAQ