Bicarbonate Unit Converter

Bicarbonate (HCO3-) is an electrolyte that helps regulate the acid-base balance (pH) in your blood. When you see "CO2" or "total CO2" on a blood test, it's primarily measuring bicarbonate, as 80-95% of carbon dioxide in your blood exists in this form.

Bicarbonate acts as a chemical buffer, working with carbonic acid to keep your blood pH within a narrow, healthy range of about 7.35-7.45. This balance is essential for normal cell function throughout your body.

The normal range for bicarbonate is typically 23-29 mEq/L (or mmol/L), though this may vary slightly between laboratories.

Bicarbonate is produced primarily by the kidneys through reabsorption and regeneration. It also forms in the blood when carbon dioxide (a metabolic waste product) combines with water.