Convert a prescribed dose per kilogram into a volume or tablet count.
Weight-based dosing is divided across the daily administrations, and the liquid volume follows from the concentration. The absolute daily maximum overrides the weight calculation in heavier patients. Weight-based dosing can exceed absolute maxima in larger adults, which is why the ceiling check matters as much as the arithmetic.
Medication Dosage
Daily dose = weight × dose per kg; per administration = daily dose ÷ doses per day
This performs arithmetic on figures you supply and does not recommend any drug, dose or route. Medication errors can cause serious harm or death. Always verify every calculation independently, confirm against the prescription and product literature, and follow your institution's double-check procedures. Never self-medicate or alter a prescribed dose.
Daily dose = weight × dose per kg; per administration = daily dose ÷ doses per day Weight-based dosing is divided across the daily administrations, and the liquid volume follows from the concentration. The absolute daily maximum overrides the weight calculation in heavier patients.
Weight-based dosing can exceed absolute maxima in larger adults, which is why the ceiling check matters as much as the arithmetic.
This calculator takes 5 inputs: Body weight, Prescribed dose per kilogram, Doses per day, Liquid concentration, Maximum daily dose. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.