Pet CBD Dosing by Weight: A Chart to Reference Before You Buy

Bottom line: CBD dosing for pets scales with body weight, not with the flat “1 dropperful” instruction printed on most bottles. A widely cited starting range in veterinary CBD literature is roughly 0.1–0.5 mg of CBD per kilogram of body weight, once or twice daily — start low, hold for 1–2 weeks, and increase gradually only if needed. This is general reference information, not a substitute for your vet’s guidance on your specific pet.

Why the Bottle’s Suggested Serving Isn’t Enough

Most pet CBD products print one suggested serving, sometimes split into two or three weight bands (“small,” “medium,” “large”). That’s a reasonable starting point, but it’s built to cover a wide range of animals with a single instruction — a 12 lb dog and a 24 lb dog can both land in the same “small” band on some labels, despite needing meaningfully different doses.

A weight-based calculation gives you a more precise starting point. Cross-check it against the product’s own label instructions rather than replacing one with the other — if the two disagree significantly, that’s worth a quick call to your vet before starting.

Starting-Dose Reference Chart (by Body Weight)

Based on a commonly cited starting range of roughly 0.1–0.5 mg CBD per kg of body weight:

Pet Weight	Low-End Starting Dose (~0.1 mg/kg)	Higher-End Starting Dose (~0.25 mg/kg)
10 lbs (4.5 kg)	~0.45 mg	~1.1 mg
20 lbs (9 kg)	~0.9 mg	~2.25 mg
30 lbs (13.6 kg)	~1.4 mg	~3.4 mg
40 lbs (18 kg)	~1.8 mg	~4.5 mg
50 lbs (22.7 kg)	~2.3 mg	~5.7 mg
70 lbs (31.75 kg)	~3.2 mg	~7.9 mg
90 lbs (40.8 kg)	~4.1 mg	~10.2 mg

How to use this table: find your pet’s approximate weight, start at the low-end dose, and hold there for 5–7 days before considering any increase. Most pets that respond to CBD show some change — calmer behavior, less visible discomfort — within that first week. If nothing changes after a full week at the low-end dose, move to the higher-end starting dose and hold again before going further.

This is a starting-point reference, not a maximum or a guaranteed effective dose — individual pets vary based on metabolism, the specific condition being addressed, and product concentration. Always check the actual mg-per-mL or mg-per-treat concentration on your specific product, since a dropper “serving” varies by brand and formulation.

How to Titrate Up Safely

1. Start at the low end of the weight-based range. Give it once daily for the first few days unless the product label recommends otherwise.
2. Hold for 5–7 days before changing anything. CBD isn’t typically an immediate-onset compound for chronic conditions like joint discomfort or anxiety — give it a full week at a consistent dose before judging whether it’s working.
3. If no change after a week, increase to the higher end of the starting range. Hold again for another 5–7 days.
4. If you still see no change after 2–3 weeks total, or if your pet is on other medication, talk to your vet rather than continuing to increase the dose on your own. CBD can interact with certain medications metabolized through the liver, and your vet can advise on a higher dose or a different approach entirely.
5. Watch for signs you’ve gone too high, not just signs it isn’t working: excess sedation, lethargy beyond calm, or loose stool are the most common signals to step back to the previous dose.

Dogs vs. Cats: What Changes

The weight-based logic applies to both, but cats generally warrant more caution:

• Start cats at the lowest end of the range and extend the hold period between increases.
• Use a product specifically formulated and dosed for cats where available, rather than assuming a dog product’s per-mL concentration is appropriate just because you scale the volume down.
• Cats can be more sensitive to flavoring, carrier oils, and other inactive ingredients in dog-formulated products — check the ingredient list, not just the CBD content.

When to Skip the Math and Call Your Vet First

Skip the self-dosing approach entirely and start with a vet conversation if any of the following apply: your pet is on other medication (especially anything processed by the liver), your pet has an existing liver or kidney condition, your pet is a puppy/kitten or a senior with multiple health issues, or you’re treating something beyond mild anxiety or everyday joint stiffness — CBD is not a substitute for veterinary treatment of a diagnosed medical condition.

Choosing a Product Once You Know Your Starting Dose

Once you have a weight-based starting point, the product decision comes down to format and budget. King Kanine is the broader-range premium option — oils, chews, and grooming products with dosing guidance built around body weight across the line, useful if you already know CBD helps your pet or want a specific format. For a lower-cost way to test whether CBD is worth it for your pet in the first place, see our full King Kanine vs. Baileys CBD comparison.

For more on why a product formulated specifically for pets matters — not just a lower dose of a human CBD product — see why human CBD products aren’t safe for pet dosing. And for a real-world 8-week test at a specific dose, see our King Kanine CBD arthritis review.

Shop King Kanine — Premium Pet CBD, Dosed by Body Weight

This article is for general informational purposes and does not constitute veterinary advice. The dosing ranges above are commonly cited starting points in veterinary CBD literature, not a personalized prescription — consult your veterinarian before starting any supplement for your pet, particularly if your pet is on other medications or has an existing health condition. This article contains affiliate links — Verto may earn a commission for qualifying purchases at no additional cost to you.