💊 Pet Medication Calculator
Convert a vet-prescribed dose rate into milligrams and millilitres for your pet's weight. Educational only — confirm every medication and dose with your veterinarian.
🔧 Calculate a Dose
What is a Pet Medication Calculator?
A pet medication calculator helps you turn a veterinarian's prescription — expressed as milligrams per kilogram — into the exact milligrams and, for liquids, millilitres to give your pet at their current weight. It removes the error-prone mental math from dosing.
Crucially, it is a calculation aid, not medical advice. Every medication and dose must be confirmed with your veterinarian, who knows your pet's history, species, and health status.
❓ Frequently Asked Questions
Is it safe to dose my pet's medication myself?
This tool is educational only — confirm every medication and dose with your veterinarian. It simply does the arithmetic of converting a weight and a dose rate your vet has already prescribed into milligrams and millilitres; it does not decide whether a drug is appropriate, safe, or correctly dosed for your individual pet. Underdosing can fail to treat a condition and overdosing can be dangerous or fatal, so a professional must always be in the loop.
How does the calculator work out the dose?
It multiplies your pet's body weight in kilograms by the dose rate in milligrams per kilogram to get the milligrams per dose. If you enter the liquid concentration in milligrams per millilitre, it also divides to show the volume to draw up, and it multiplies by the number of daily doses for a total. These are standard, transparent calculations — but the inputs must come from your veterinarian.
Can I give my pet human medications like ibuprofen or acetaminophen?
No — never give human medications to a pet without explicit veterinary direction. Many common human drugs, including ibuprofen, acetaminophen (paracetamol), and certain decongestants, are toxic and can cause organ failure or death even in small amounts, and cats are especially sensitive. Always ask your vet before giving anything.
What should I do if I think I gave the wrong dose?
Contact your veterinarian or an animal poison control hotline immediately, and have the medication packaging and the amount given on hand. Acting quickly gives the best chance of a good outcome. This calculator is a planning aid, not a substitute for that professional help.