Corrected Calcium Calculator — Free Online Tool
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Corrected Calcium Calculator

Calculate corrected serum calcium level adjusted for hypoalbuminemia

Payne's Formula: $\text{Corrected Ca} = \text{Measured Ca} + 0.8 \times (4.0 - \text{Albumin})$. Normal serum calcium ranges from 8.5 to 10.2 mg/dL. Enter measured values below.
Laboratory Parameters Input

Calculation Results

⚠️ Not medical advice. For clinical chemistry and reference only. Corrected calcium calculations must be interpreted by a physician alongside ionized calcium measurements when clinically indicated.

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