Use this calculator when a total calcium result needs albumin correction. Enter total calcium in mmol/L and albumin in g/L; ClinFuse applies the common SI correction formula and displays the corrected value.
mmol/L
g/L
Typical adult reference interval
Positive values add calcium; negative values subtract calcium.
Clinical decision support only. Verify unusual values, follow local guidelines, and interpret calculations alongside the full clinical picture.
Corrected calcium (mmol/L) = measured total calcium + 0.02 × (40 - albumin in g/L)Albumin correction is an estimate and may be unreliable in critical illness, major acid-base disturbance, and abnormal binding states.
If calcium status is clinically important or symptoms are present, consider ionised calcium where available.
Interpret corrected calcium alongside renal function, phosphate, magnesium, PTH, vitamin D, medication history, and clinical context.
These calculators are designed for clinician decision support and SEO-friendly public education. Verify results against the original method and the patient context before making decisions.