Clinical judgment required. This calculator is a decision-support tool, not a substitute for veterinary consultation. For poisoning emergencies, call the ASPCA Animal Poison Control Center at 888-426-4435 or your nearest emergency veterinary hospital.

Ethylene Glycol Toxicity CalculatorCanineFeline

Calculate ethylene glycol (antifreeze) toxicity risk in dogs and cats. Estimates pure ethylene glycol dose in mL/kg based on product type and amount ingested. Ethylene glycol is one of the most lethal common toxins — the minimum lethal dose is 4.4 mL/kg in dogs and just 1.4 mL/kg in cats (as little as one teaspoon can kill a cat). Time is critical: treatment with fomepizole must begin within 8-12 hours in dogs and 3 hours in cats. Used for antifreeze poisoning emergencies, coolant ingestion triage, and determining treatment urgency. Common query: 'my dog drank antifreeze' or 'cat licked antifreeze'.

Body Weight

Species

Amount Ingested

Product Type

Pure Ethylene Glycol Ingested

—mL

Dose per Body Weight

—mL/kg

1 mL/kg

4.4 mL/kg

Non-toxic

High

Lethal