This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.
Potassium intake / potassium replacement
Maintenance requirement and potassium replacement per kg by severity (SCHN 2025) and RCH Melbourne – with maximum rates and concentrations
Calculation aid for healthcare professionals: the calculator reproduces what the sources cited assign to the inputs. Clinical assessment and every treatment decision remain with the treating physician. Inputs and results are not stored.
Frequently asked questions
Potassium intake / potassium replacement: What does this calculator compute?
Calculates the potassium maintenance requirement (2–4 mmol/kg/day) for the body weight and the replacement by severity of hypokalaemia (oral per dose or IV per hour) according to the Sydney Children's Hospitals Network guideline 2025, additionally shows the limits of the Royal Children's Hospital Melbourne (ward 0.2, intensive care 0.4 mmol/kg/h) and checks a planned infusion against rate, concentration and the need for ECG monitoring.
Potassium intake / potassium replacement: Which sources is this calculator based on?
The Royal Children's Hospital Melbourne: Clinical Practice Guideline: Hypokalaemia (2024); Sydney Children's Hospitals Network (SCHN): Potassium Management – Practice Guideline 2021-009 v2.2 (2025)