Free Pet Medication Dose Helper calculator with clear step-by-step results.
Converts a prescribed milligram-per-kilogram dose into the practical quantities you actually administer: milligrams per dose, millilitres of a liquid at a known concentration, and the tablet fraction. It is an arithmetic aid for a dose a veterinarian has already prescribed.
Dose in milligrams
mg = body weight kg x prescribed mg per kg
Volume of liquid
ml = dose mg / concentration mg per ml
This is an arithmetic aid only and not veterinary advice. Never administer any medication to an animal without a veterinary prescription and explicit dosing instructions. Many human medicines are toxic to pets, and overdose can be fatal.
Only if the tablet is scored and the medicine is not modified-release or enteric-coated. Splitting some formulations changes absorption or exposes the animal to a harmful dose.
Stop and contact your veterinarian. Never adjust a dose based on this or any calculator - transcription errors in weight, units or concentration are the usual cause.