mg/dL
g/dL
mg/dL
How to Use:
• Enter any two values – the third will be calculated automatically.
• Click on mode buttons above to highlight which value is being calculated.
• All fields update instantly as you type or change values.
Standard Calcium Correction Formula:
Corrected Ca = Measured Ca + [0.8 × (4.0 - Albumin)]
Formula updates based on calculation mode
Calculated Corrected Calcium
8.4
mg/dL
Within Normal Range
Calculation Mode:
Corrected Calcium
Values Used:
Measured Ca & Albumin
Albumin Adjustment:
1.0 × 0.8 = 0.8 mg/dL
Clinical Interpretation:
With measured calcium of 7.6 mg/dL and albumin of 3.0 g/dL, the corrected calcium is 8.4 mg/dL, which is within the normal range.
Reference Ranges:
Corrected Calcium: 8.4-10.2 mg/dL
Albumin: 3.5-5.0 g/dL
Ionized Calcium: 4.5-5.3 mg/dL
Total Calcium: 8.6-10.3 mg/dL
Clinical Note: This calculator uses the standard correction formula: Corrected Ca = Measured Ca + [0.8 × (4.0 - Albumin)]. The gold standard for assessing calcium status is direct measurement of ionized calcium. Always correlate with clinical context.