Dog ate chocolate? Toxicity calculator
How much theobromine your dog took in, for its weight, and what that dose usually means.
- 20 mg/kg · Mild signs
- 40 mg/kg · Heart effects
- 60 mg/kg · Seizures possible
How this works
Chocolate contains theobromine and caffeine, which dogs clear very slowly. The calculator multiplies the amount eaten by the typical content of that kind of chocolate and divides by your dog’s weight. Mild signs usually start around 20 mg/kg, heart effects around 40 mg/kg and seizures from about 60 mg/kg. Individual dogs vary, and chocolate brands vary, so treat the result as a guide and call your vet if you are unsure.
| Chocolate | mg/g | 5 kg dog | 10 kg dog | 20 kg dog | 30 kg dog |
|---|---|---|---|---|---|
| White chocolate | 0.01 | — | — | — | — |
| Milk chocolate | 2.1 | 48 g | 95 g | 190 g | 286 g |
| Semisweet or dark chocolate | 5.5 | 18 g | 36 g | 73 g | 109 g |
| Unsweetened baking chocolate | 16.0 | 6.3 g | 13 g | 25 g | 38 g |
| Dry cocoa powder | 28.5 | 3.5 g | 7.0 g | 14 g | 21 g |
| Cocoa bean mulch | 9.0 | 11 g | 22 g | 44 g | 67 g |
Grams of each kind that give roughly 20 mg/kg — the point where mild signs become likely. A standard bar is 40–100 g.
Tailwise is for general information and is reviewed by veterinary professionals, but it is not a substitute for advice from your own vet, who knows your pet. How we check facts