Corrected Ca Calculator
Calculate the corrected calcium level based on serum calcium and albumin levels using the commonly used formula.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Corrected Calcium Calculator
- Enter Serum Calcium (mg/dL) – e.g., 9.5. Use any positive number.
- Enter Albumin (g/dL) – e.g., 3.5. Use any positive number.
- Click "Calculate" – The result appears instantly.
What it does: Calculates corrected calcium using the formula:
Corrected Ca = Measured Ca + 0.8 × (4 – Albumin)
Output: Shows the corrected calcium in mg/dL, plus a step-by-step breakdown of the calculation.
Note: All values must be positive numbers. If you enter invalid data, an error message will appear.
Previous Results
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Frequently Asked Questions
Corrected calcium adjusts total calcium level for albumin concentration to estimate free ionized calcium.
Albumin binds calcium; low albumin can falsely lower total calcium, so correction is needed.
Serum calcium in mg/dL and albumin in g/dL. The result is in mg/dL.
