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Free Fish Oil Calculator

Calculate how many fish oil servings are needed to reach a target daily omega-3 (EPA+DHA) intake.

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Last updated October 10, 2026 · Report an error

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Computes how many servings of a fish oil supplement are needed to reach a target daily combined EPA+DHA (omega-3) intake, given the supplement's label EPA+DHA content per serving. A commonly cited general-population guidance range for combined EPA+DHA intake for general health is roughly 250-500 mg/day (e.g. as summarized by organizations such as GOED, the Global Organization for EPA and DHA Omega-3s, and various national dietary guidelines). This is a supplement-serving-size arithmetic tool, not medical dosing advice. Consult a doctor or registered dietitian for individualized omega-3 intake goals.

How it works

Enter the combined EPA+DHA content per serving (from the supplement label) and your target daily combined EPA+DHA intake. The tool divides the target by the per-serving amount to compute servings needed.

  1. Enter combined EPA+DHA per serving (mg, from the supplement label).
  2. Enter target daily combined EPA+DHA (mg).
  3. Click Calculate to see your results.

Examples

300 mg EPA+DHA per serving, target 500 mg/day

500 / 300 = 1.67 servings/day, rounded up to 2 servings for about 600 mg/day actual intake.

Who should use it

  • Comparing different fish oil supplement products.
  • General omega-3 intake planning.

Industry applications

  • Nutrition and supplement education
  • General wellness reference

Advantages

  • Simple serving-size arithmetic.
  • Cites a recognized general guidance range (GOED/dietary guidelines).

Limitations

  • A serving-size calculation only, not personalized medical dosing advice.

Common mistakes to avoid

  • Using total fish oil serving size (which includes other fats) instead of just the EPA+DHA content specifically.

Best practices

  • Read the supplement facts label carefully — "1000mg fish oil" often contains much less than 1000mg of actual EPA+DHA.

Tips

  • Some supplements express EPA and DHA separately on the label — remember to add them together before entering the per-serving value.

Frequently asked questions

Yes, with no signup and no limit on how many calculations you run.
It's listed on the supplement facts label of your fish oil product, usually as separate EPA and DHA amounts that you add together, or already listed combined.
That is a commonly cited general-population reference range for general health; individual needs can differ (e.g. for specific health goals), which is why the target is a direct input here rather than a fixed number. Consult a doctor or registered dietitian for personalized goals.

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