Dog Onion and Garlic Toxicity Calculator

What is the Dog Onion and Garlic Toxicity Calculator?

Onion has made dogs ill at 15–30 g per kg of body weight, and garlic is 3–5 times stronger. For a 30 lb dog that starts at about 7 oz (200 g) of onion, less than one and a half medium onions, or roughly 1.4 oz (40 g) of garlic.

The Dog Onion and Garlic Toxicity Calculator works out how risky the onion or garlic your dog ate is from its weight and the amount eaten. Many common household foods and products that are harmless to people are toxic to pets, and knowing the warning signs can make the difference in an emergency.

A well-cared-for dog usually lives somewhere between 10 and 13 years. Diet-wise they are an omnivore, which shapes almost every feeding decision you make. Dogs live indoors with their family, needing daily exercise, mental stimulation, and a securely fenced outdoor area for larger or high-energy breeds. The usual suspects for this species are dental disease, obesity, ear infections (in floppy-eared breeds), so any noticeable change is worth following up.

How does the Dog Onion and Garlic Toxicity Calculator work?

The check is based on commonly documented toxic substances and warning signs for dogs, referenced against veterinary and poison-control sources. It is a starting point, not a verdict. Somebody who has actually examined your dog will always know more than a formula does.

Factors that matter

• The specific substance or food involved, and how much was consumed or encountered
• Your dog's size, smaller animals are affected by smaller amounts
• How quickly symptoms appear: which varies by substance
• Any existing health conditions that could increase risk

How do you use the Dog Onion and Garlic Toxicity Calculator?

1. Enter the your dog's weight in whichever unit you use (lb, oz, kg)
2. Answer "What was eaten?"
3. Answer "How much was eaten?"
4. Press Calculate, then read the result alongside the sources listed below

If two people care for your dog, agree on one method and stick to it. Half of all confusing results come from measuring differently each time.

For related questions, see the other safety tools or browse every dog tool.

Before you rely on this

Two dogs with identical numbers on paper can still need different care. Breed or line, body condition, activity level and any existing health conditions all pull the real answer away from the average. If your dog has a diagnosed condition, is pregnant, or is very young or very old, treat the figure here as the loosest of guides and let your vet set the actual target.