Updated
Using Dog chocolate toxicity calculator
Estimate methylxanthine exposure from chocolate type, amount and dog weight. If ingestion occurred, contact a veterinarian or animal poison service now.
Approximate theobromine plus caffeine concentration from Merck: milk 2.3, dark 5.3-5.6, baking 15.5, cocoa 28.5 and white 0.04 mg/g. Brands and cocoa content vary; mixed foods need an ingredient-specific assessment. No result establishes safety, predicts symptoms or replaces urgent veterinary advice. Other toxic ingredients and packaging are not modeled. Do not induce vomiting unless a veterinarian instructs you.
A worked example
A 10 kg dog that ate 50 g of milk chocolate (about 2.3 mg of theobromine and caffeine per gram) took in about 11.5 mg per kg.
Before you use the result
Approximate theobromine plus caffeine concentration from Merck: milk 2.3, dark 5.3-5.6, baking 15.5, cocoa 28.5 and white 0.04 mg/g. Brands and cocoa content vary; mixed foods need an ingredient-specific assessment. No result establishes safety, predicts symptoms or replaces urgent veterinary advice. Other toxic ingredients and packaging are not modeled. Do not induce vomiting unless a veterinarian instructs you.
Example results for dog weight (kg)
These examples use Amount of chocolate eaten (grams): 50; Chocolate type: Milk chocolate. They are reference calculations, not recommended settings.
| Dog weight (kg) | Upper estimated exposure (mg/kg) |
|---|---|
| 5 | 23 |
| 10 | 11.5 |
| 20 | 5.75 |
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ToolOctopus. “Dog chocolate toxicity calculator.” Updated 2026-09-29. https://tooloctopus.com/dog-chocolate-toxicity-calculator.
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