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Chocolate Toxicity Calculator

Your dog ate chocolate? Check the risk level in seconds.

Dog's weight (kg)

Chocolate type

Amount eaten (grams)

🚨 Act now: call your vet or animal poison control right away. Do NOT wait for symptoms — they can take 6–12 hours to appear.

⚠️ Estimate for reference only — NOT veterinary advice. If your dog ate chocolate, contact your veterinarian or animal poison control IMMEDIATELY, even if the risk below shows as lower.

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How to use

Enter your dog’s weight in kg.
Pick the chocolate type and the amount eaten in grams.
Read the risk estimate — then call your vet regardless.

About this tool

Chocolate contains theobromine, which dogs metabolize very slowly. Darker chocolate = more theobromine = more dangerous.

This calculator uses published theobromine values (mg per gram) and standard veterinary toxicity thresholds to estimate mg per kg of body weight.

All calculations happen in your browser. No data is sent or stored anywhere.

FAQ

How much chocolate is dangerous for a dog?

It depends on the type and the dog’s weight. Roughly: mild signs from ~20 mg theobromine per kg, serious risk above ~40 mg/kg. Dark and baking chocolate are far more dangerous than milk.

My dog ate chocolate an hour ago and seems fine?

Symptoms can take 6–12 hours. "Seems fine" means nothing yet — call your vet now.

Should I make my dog vomit?

Only if your vet instructs you to. Never induce vomiting on your own.

What about cats?

Cats are also sensitive to theobromine, but rarely eat chocolate. The math is similar — and the same "call your vet" rule applies.

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