Medication Dosage by Weight Calculator
Many medications are dosed based on body weight, especially for children or when precise dosing is critical. This calculator helps you determine the correct dose based on the prescribed mg/kg dosage and patient weight.
Weight-based dosing (mg/kg) is the standard method for calculating medication doses, particularly in pediatric medicine, oncology, and critical care. The principle is simple: the dose is proportional to body weight to achieve consistent drug levels across patients of different sizes.
To use this calculator, you need to know the prescribed dose in mg/kg (from your doctor's prescription or the drug label) and the patient's weight. The calculator multiplies these values to determine the total daily dose and divides by the dosing frequency to give the amount per individual dose.
IMPORTANT DISCLAIMER: This calculator is for educational and reference purposes only. It is NOT a substitute for professional medical advice, diagnosis, or treatment. Always verify calculated doses with the prescribing physician or a pharmacist. Many medications have maximum dose limits that are not reflected in simple mg/kg calculations. Drug interactions, organ function, and other factors can affect appropriate dosing.