🚨 If your dog ate chocolate, call your vet or an animal poison control hotline now. Don't wait for symptoms.
- ASPCA Animal Poison Control: (888) 426-4435 · 24/7, consultation fee may apply
- Pet Poison Helpline: (855) 764-7661 · 24/7, fee applies
🍫Dog Chocolate Toxicity Calculator
Estimate how much theobromine your dog ate — and always call your vet or poison control, whatever the result.
What happened
Severity: None expected
8.5 mg theobromine per kg
Symptoms aren't typically expected at this dose — but dogs vary, and amounts are easy to underestimate. Call your vet anyway.
📞 Call your vet or an animal poison control hotline now, whatever this result says.
- ASPCA Animal Poison Control: (888) 426-4435
- Pet Poison Helpline: (855) 764-7661
dose mg/kg
8.5
theobromine mg
116
severity
None expected
mg per oz
58
Have the wrapper handy when you call — the exact product and amount help your vet decide what to do. Symptoms can take 6–12 hours to appear.
How it works
Chocolate contains theobromine, which dogs process very slowly.
- Dose (mg/kg) = ounces eaten × theobromine mg per ounce ÷ dog's weight in kg
Standard veterinary thresholds:
- 20 mg/kg+: mild signs (vomiting, diarrhea, thirst, restlessness)
- 40 mg/kg+: moderate (heart rhythm problems)
- 60 mg/kg+: severe (tremors, seizures)
Worked example
A 30 lb (13.6 kg) dog eats 2 oz of baking chocolate (390 mg/oz):
- 2 × 390 = 780 mg theobromine
- 780 ÷ 13.6 = 57 mg/kg → moderate. Call the vet immediately.
Even a low number doesn't mean your dog is safe — labels vary, amounts get underestimated, and some dogs are more sensitive. Always call your vet or a poison control hotline.
Questions people ask
Call your vet or an animal poison control hotline right away. Have the wrapper and your dog's weight ready. Don't wait for symptoms.
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Last updated October 8, 2026. These results are friendly estimates to help you plan — always double-check before buying or making big decisions.