Fish Oil Calculator
Enter your fish oil capsule’s EPA and DHA content and your target daily omega-3 dose to see how many capsules you need per day.
Why EPA + DHA matter
Fish oil supplements are usually dosed based on their combined EPA and DHA content, the two long-chain omega-3 fatty acids most studied for general health, rather than the total fish oil weight on the label, since concentration varies widely between products.
The formula
Capsules Needed Per Day = Target Daily EPA+DHA ÷ (EPA per Capsule + DHA per Capsule), rounded up to the nearest whole capsule so you meet or exceed your target.
- Check your supplement’s label for exact EPA and DHA milligrams, not just total fish oil weight
- Many general guidelines suggest around 250-1000mg combined EPA+DHA per day for general adults, though needs vary
This tool is for general educational and planning purposes only and is not a recommended dosage. Always check the product label and consult a healthcare professional before starting any supplement, especially if pregnant, nursing, or taking blood-thinning medication.