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Fish Mercury Calculator

Health
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Calculates the estimated mercury content in fish and provides safe consumption recommendations based on body weight.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Fish Weight (oz), Mercury Concentration (ppm), and Body Weight (lbs) in the units shown.

Step 2

Read Safe Mercury Consumption (mg/week), Mercury in Fish (mg), and Recommended Servings Per Week in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Small Fish, Low Mercury

Fish Weight (oz): 4 oz; Mercury Concentration (ppm): 0.1 ppm; Body Weight (lbs): 150 lbs

Safe Mercury Consumption (mg/week): 6.818181818 mg/week; Mercury in Fish (mg): 1.133979702 mg; Recommended Servings Per Week: 6.012613636 servings

Medium Fish, Moderate Mercury

Fish Weight (oz): 6 oz; Mercury Concentration (ppm): 0.3 ppm; Body Weight (lbs): 150 lbs

Safe Mercury Consumption (mg/week): 6.818181818 mg/week; Mercury in Fish (mg): 5.102908658 mg; Recommended Servings Per Week: 1.336136364 servings

Large Fish, High Mercury

Fish Weight (oz): 8 oz; Mercury Concentration (ppm): 0.6 ppm; Body Weight (lbs): 150 lbs

Safe Mercury Consumption (mg/week): 6.818181818 mg/week; Mercury in Fish (mg): 13.60775642 mg; Recommended Servings Per Week: 0.5010511364 servings

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Important

Use the result as an estimate and confirm any medical decisions with a qualified professional.