Chocolate Toxicity Calculator for Dogs
Example: 10 kg dog + 50g dark chocolate = High risk
Assess the risk if your dog has eaten chocolate. Enter your dog's weight, the type of chocolate, and the amount consumed to see the estimated theobromine dose and risk level. This calculator is for informational purposes. Contact your veterinarian in an emergency.
Toxicity dose zone
Risk Level
Toxicity risk assessment
Theobromine Consumed
Total mg of theobromine
Dose per kg
mg theobromine per kg body weight
20 mg/kg Threshold
Amount of this chocolate type at the lower toxicity reference threshold
How We Calculate This
Theobromine (mg) = grams_eaten × mg_per_gram. Dose = mg / weight_kg. Risk bands: <20 mg/kg mild, 20-40 mg/kg moderate, 40-60 mg/kg severe, >60 mg/kg emergency. Theobromine content: white 0.1, milk 2.0, dark 5.5, baking 14, cocoa 20 mg/g.
Methodology last reviewed: February 2024. How SparkCalc works
Sources: Merck Veterinary Manual: Chocolate Toxicosis in Animals · VCA Animal Hospitals: Chocolate Poisoning in Dogs
Frequently Asked Questions
Why is chocolate toxic to dogs?
Dogs metabolize theobromine (a compound in chocolate) much more slowly than humans. This allows it to build up to toxic levels. Dark chocolate and cocoa have the highest concentrations.
What are the symptoms of chocolate poisoning?
Mild: vomiting, diarrhea, restlessness. Moderate: rapid breathing, increased heart rate, hyperactivity. Severe: muscle tremors, seizures, heart failure. Symptoms may appear 6-12 hours after ingestion.
What should I do if my dog ate chocolate?
Contact your veterinarian or pet poison hotline immediately. Note the type and amount of chocolate, your dog's weight, and when it was eaten. Do not induce vomiting unless instructed by a vet.
Can dogs eat white chocolate?
White chocolate has very low theobromine but is still not recommended. It's high in fat and sugar, which can cause pancreatitis and digestive issues in dogs.
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This calculator provides estimates only and is NOT a substitute for veterinary advice. If your dog has eaten chocolate, contact your veterinarian or pet poison control immediately. Response time is critical in chocolate toxicity cases.