Cat Chocolate Toxicity Calculator
Estimate the theobromine dose a cat received from eating chocolate and assess the risk level.
Formula
Dose (mg/kg) = (amount oz × theobromine per oz) ÷ weight kg
- Theobromine content: white ~0 mg/oz, milk ~60 mg/oz, dark ~200 mg/oz, baking ~450 mg/oz.
- Mild toxicity in cats: >20 mg/kg; moderate: >40 mg/kg; severe: >100 mg/kg.
- Contact a vet immediately if any chocolate was eaten — cats are more sensitive than dogs.
10 lb cat eats 0.5 oz milk chocolate
Inputs
- Cat Weight: 10 lbs
- Chocolate Type: milk
- Amount Eaten: 0.5 oz
0.5 oz × 60 mg/oz = 30 mg. 10 lbs = 4.54 kg. Dose = 30 ÷ 4.54 ≈ 6.6 mg/kg → Mild risk.
Frequently asked questions
Is any chocolate safe for cats?
No. All chocolate is toxic to cats. Even white chocolate can cause GI distress.
What should I do if my cat ate chocolate?
Contact your vet or the Pet Poison Helpline immediately.