Look past the price tag.
Compare two products by daily cost—not just the price of a bottle.
Use serving information already established from the label and with your veterinarian. This calculator does not decide what to give an animal or whether two products are equivalent.
Enter your comparison
Enter one product or complete both. Use the same unit for servings per container and servings per day. Add shipping and tax allocated to this container; leave them at zero to exclude them. Keep subscription prices separate from one-time prices.
Entries stay in this page and are not saved or submitted by the calculator. If analytics is later enabled with your consent, it can record that the calculator was used, not the amounts entered.
How the math works
Total container cost = price + allocated shipping + tax. Daily cost = total container cost × labeled servings per day ÷ servings per container. Container duration = servings per container ÷ labeled servings per day. The 30-day figure is a prorated use cost, not necessarily the amount you pay at checkout.
For changing serving schedules, calculate each period separately. A lower cost does not establish equal ingredients, quality, suitability or benefit.
Make the comparison useful
| Check | What to record |
|---|---|
| Ingredient | Exact name, declared amount, full ingredient list and product form |
| Intended use | Species, age and label restrictions |
| Evidence | Study source and match to this formulation and species |
| Quality documentation | Lot identity, expiration, available report and testing scope |
| Price | Seller, date, container size and one-time or subscription terms |
Next: check the evidence or print your veterinarian discussion checklist.
Product recommendations
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