Dog Deworming Calculator
Find the right dewormer dose and schedule for your dog
Dog Weight (lbs)
Dog Age
Dewormer Type
Dog Deworming: What Every Owner Needs to Know
Internal parasites are extremely common in dogs — especially puppies. Regular deworming is essential for your dog’s health and for protecting your family, as some parasites (roundworms, hookworms) are zoonotic (transmissible to humans). Our dog deworming calculator gives you the reference dose for the three main dewormer types.
Common Dog Worms & Treatments
| Parasite | Treatment | Signs |
|---|---|---|
| Roundworms | Pyrantel, Fenbendazole | Pot belly, vomiting, worms in stool |
| Hookworms | Pyrantel, Fenbendazole | Anaemia, dark tarry stools, weight loss |
| Whipworms | Fenbendazole | Bloody diarrhoea, weight loss |
| Tapeworms | Praziquantel | Rice-like segments near tail, scooting |
FAQs
How often should I deworm my dog?
Puppies: every 2 weeks from 2-8 weeks, then monthly until 6 months. Adult dogs: every 3 months if in a high-risk area (outdoor dogs, hunting dogs, households with children). Dogs on monthly heartworm prevention that includes roundworm/hookworm coverage (e.g. Heartgard Plus, Interceptor Plus) may need less frequent separate deworming.
Can I buy dog dewormers without a vet prescription?
Some dewormers are available OTC (pyrantel pamoate, some fenbendazole products). However, prescription-strength dewormers and accurate diagnosis of the specific worm type require a vet visit and fecal examination. If you see signs of parasites, always visit your vet first for a fecal test.
Conclusion
Our dog deworming calculator gives you reference doses for common dewormers. Always confirm the specific dewormer, dose, and schedule with your veterinarian. For complete dog health, use our weight calculator and heartworm prevention calculator.