Key:
: 20-40 mg/kg. Mild.
: 40-60 mg/kg. Moderate to severe.
: >60 mg/kg. Severe.
This calculator estimates the amount of methylxanthine per kilo the dog has ingested. Unfortunately, methylxanthine amounts vary between manufacturers and sensitivity to them varies between individual dogs. This should be used as a guideline but is not guaranteed to be accurate.
The assumptions are that milk chocolate contains 2.5mg per gram, dark (eating chocolate) 5.5mg per gram, unsweetened (baking chocolate) 15.5mg per gram, and cocoa 28.5mg per gram.