Introduction
Solid medication dosing converts a weight-based prescription (mg/kg) into a practical tablet count, which is the single most common calculation done at the bedside and in community pharmacy for children and low-body-weight adults.
How to use the Solid Medication Dosing Calculator
- Enter the patient's weight in kilograms.
- Enter the prescribed dose in mg per kg.
- Enter the strength of the tablet on hand, in mg.
- Click Calculate to see the total dose and tablet count.
Formula and Calculation Method
Visual breakdown
Why use this calculator
Manual mg/kg-to-tablet conversion is a common source of decimal-point medication errors. Running the numbers through a dedicated calculator, and cross-checking the chart against nearby weights, catches mistakes before they reach the patient.
FAQs
Can I use this for liquid formulations?
No — for liquid medicine, use the dedicated Liquid Dose Medicine calculator instead, since it works in mg/mL rather than tablet strength.
What if the tablet count isn't a whole number?
Round to the nearest practical fraction the tablet can be split into (whole, half, quarter), or ask the prescriber about an alternate strength.
Does this account for renal or hepatic dose adjustment?
No. This is a straightforward arithmetic conversion; any organ-function based adjustment must be applied by the prescriber before entering the dose.