Fish Oil Calculator

Estimate daily EPA plus DHA intake and capsule count from body weight, target dose, and capsule strength.

884.0K uses Updated · 2026-05-25 Runs locally · zero upload
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How to Use Fish Oil Calculator

  1. Enter body weight in kilograms.
  2. Enter the low and high target doses in milligrams per kilogram of body weight.
  3. Enter the combined EPA plus DHA amount per capsule from the supplement label.
  4. Calculate the daily EPA plus DHA range and the approximate number of capsules per day.

Formula & Theory - Fish Oil Calculator

Daily omega-3 target (mg) = body weight (kg) x target dose (mg/kg)
Capsules per day = daily target (mg) / EPA+DHA per capsule (mg)
  • The calculator reports a range because omega-3 targets often vary by purpose and clinical context.
  • Use EPA plus DHA content, not total fish oil weight, because capsules may contain other fats.

Use Cases for Fish Oil Calculator

  • Comparing supplement labels with different EPA and DHA strengths.
  • Planning a daily capsule count from a weight-based target.
  • Preparing a supplement discussion with a clinician, dietitian, or pharmacist.

Frequently asked questions about Fish Oil Calculator

What inputs does Fish Oil Calculator need?

Enter body weight in kilograms.

How should I interpret the result?

Use EPA plus DHA content, not total fish oil weight, because capsules may contain other fats.

Is my data stored?

No. All calculations happen in your browser; nothing is sent to a server.