Dog chocolate toxicity calculator

It depends on the dog's weight and the type of chocolate — darker chocolate has far more theobromine per ounce than milk or white. The Merck Veterinary Manual lists mild signs (vomiting, diarrhea, extra thirst) starting around 20 mg of methylxanthine per kg of body weight, cardiac effects at 40–50 mg/kg, and seizures at 60 mg/kg and up. This calculator runs that exact math for your dog's weight and the chocolate eaten — it doesn't need to be memorized.

No. Per Merck's own table, milk chocolate carries about 64 mg of methylxanthine per ounce, versus roughly 150–160 mg/oz for semisweet/dark and 440 mg/oz for unsweetened baking chocolate — dark and baking chocolate are 7–10 times more concentrated than milk chocolate. White chocolate is listed as a "negligible" source at about 1.1 mg/oz. Same weight of chocolate, very different risk depending on type.

Merck's guide is explicit that "severe clinical signs and death may occur at much lower doses" than its own risk bands, and that "individual susceptibility... varies." Signs can also take 6–12 hours to show up. A calm dog right now isn't proof nothing happened — if the estimate lands at or above the mild-signs band (20 mg/kg), call your vet or a poison line rather than waiting to see symptoms.

Per Merck, initial signs are usually increased thirst, vomiting, diarrhea, and restlessness, appearing within 6–12 hours. More severe cases progress to hyperactivity, tremors, an abnormal heart rhythm, and seizures. Any of those — or a known ingestion large enough to land in this calculator's higher bands — is reason to call a vet or poison control line immediately, not wait and watch.

No. Dog & Cat Translator Pro is an entertainment app: you speak or tap, and it plays bark and meow sounds back. It cannot read a real bark for pain or illness, and it has no medical function. This calculator's inputs stay in your browser — nothing is sent to our servers. Use the calculator and a vet or poison line for a real ingestion; use the app for a playful reply once the emergency is handled.