Dog chocolate toxicity calculator
Enter your dog's weight and what they ate to get an instant risk assessment. This is a triage guide — not a diagnosis. When in doubt, call your vet.
Theobromine content by chocolate type
| Chocolate type | Theobromine (mg/g) | Toxic dose (medium 15kg dog) |
|---|---|---|
| White chocolate | ~0.01 | Very large amounts only |
| Milk chocolate | ~1.5–2 | ~300g+ |
| Dark chocolate (50–70%) | ~5–8 | ~75–120g |
| Very dark (70%+) | ~8–15 | ~45–75g |
| Baking / unsweetened | ~16–22 | ~30–45g |
| Cocoa powder | ~25–30 | ~20–30g |
| Cacao nibs | ~20–25 | ~25–35g |
Note: Clinical signs begin at approximately 20mg/kg theobromine. Cardiac effects appear around 40mg/kg. Seizures from 60mg/kg. These figures vary by individual dog.
Emergency contacts
ASPCA Animal Poison Control: (888) 426-4435 (24/7, fee applies). Pet Poison Helpline: (855) 764-7661 (24/7). UK Animal Poison Line: 01202 509 000.
Important: This calculator provides an estimate only. Individual dogs vary significantly in sensitivity to theobromine. Always call your vet or poison control for actual medical guidance — this calculator does not replace professional advice.