Total Sodium Deficit Calculator in Hyponatremia

Male: (Desired Na – Measured Na) × 0.6 × Weight(kg)
Female: (Desired Na – Measured Na) × 0.5 × Weight(kg)

Measured Serum Sodium (mmol/L) :
Target Serum Sodium (mmol/L) :
Body weight (kg) :

*Normal saline 1L contains 154 mEq of sodium
*3% saline 1L contains 513 mEq of sodium