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Corrected Sodium for Hyperglycaemia Calculator

True sodium when blood glucose is high.

Adjust a measured serum sodium upward in the presence of hyperglycaemia, using the Hillier formula (1.6 mEq/L correction per 100 mg/dL of glucose above 100).

Priya Venkatesan By Priya Venkatesan
Reviewed by Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

mEq/L
mg/dL

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Corrected Na (mEq/L) = measured Na + 1.6 × (glucose − 100) / 100

In depth

Adjust a measured serum sodium upward in the presence of hyperglycaemia, using the Hillier formula (1.6 mEq/L correction per 100 mg/dL of glucose above 100).