Dog Chocolate Toxicity Calculator
Estimate the theobromine dose your dog received from chocolate and assess the toxicity risk level.
Formula
Dose (mg/kg) = (amount oz × theobromine per oz) ÷ weight kg
- Theobromine: white ~0.25 mg/oz, milk ~60 mg/oz, dark ~130 mg/oz, baking ~450 mg/oz, cocoa powder ~800 mg/oz.
- Mild signs: >20 mg/kg. Severe: >40 mg/kg. LD50 in dogs: ~300 mg/kg.
- Always contact a vet — even small amounts of dark chocolate can be dangerous for small dogs.
20 lb dog eats 1 oz milk chocolate
Inputs
- Dog Weight: 20 lbs
- Chocolate Type: milk
- Amount Eaten: 1 oz
1 oz × 60 mg/oz = 60 mg. 20 lbs = 9.07 kg. Dose = 60 ÷ 9.07 ≈ 6.6 mg/kg → Minimal risk.
Frequently asked questions
What should I do if my dog ate chocolate?
Call your vet or the ASPCA Animal Poison Control Center (888-426-4435) immediately.
Is white chocolate dangerous?
White chocolate contains almost no theobromine but can still cause GI upset.