Fish Oil for Cats Calculator
Enter the EPA and DHA amounts printed on a fish oil product's label for one serving to see them added up and organized. This tool does not recommend or calculate an amount for your cat. Any use of fish oil should be confirmed with your veterinarian.
Last updated: September 25, 2026
Frequently asked questions
Does this tell me how much fish oil to give my cat?
No. It intentionally does not calculate an amount. It only adds up the EPA and DHA listed for one serving of a product so you can share clear information with your veterinarian.
Why not calculate a dose from my cat's weight?
Appropriate supplementation depends on your cat's health, diet, medications, and the purpose of use, not weight alone. Only a veterinarian who knows your cat can decide that.
What are EPA and DHA?
They are the two main long-chain omega-3 fatty acids found in fish oil. Labels usually list them in milligrams per serving.
Are all fish oil products interchangeable?
No. Products differ in concentration, ingredients, and formulation, and some human products contain additives that may not suit cats. Ask your veterinarian which product is appropriate.
When should I talk to my vet about fish oil?
Before starting any supplement, especially if your cat has a medical condition, takes medication, or is scheduled for surgery.
Is this related to the Cat Calorie Calculator?
Only loosely. Fish oil adds calories and fat to the diet, so ask your veterinarian how it fits into your cat's overall nutrition.