Fish Mercury Calculator

Check whether your fish intake exceeds the safe mercury limit.

Body weight

Weekly fish intake

Fish mercury level (ppm)

Weekly mercury intake (mg) 0.09

Within safe limit (0.3 mg/day per 70 kg)? within guideline

Formula: weekly dose = consumption * ppm / 1000; compare to body weight limit

Step-by-step with your numbers:

1. Values used:

2. Body weight = 70

3. Weekly fish intake = 300

4. Fish mercury level = 0.3 ppm

6. Weekly mercury intake = 0.09mg

7. Within safe limit (0.3 mg/day per 70 kg)? = within guideline

Did we solve your problem today?

Methylmercury in fish can be harmful above safe limits.

The math behind it

intake (mg) = fish mass (g) x mercury (ppm) / 1000. WHO provisional tolerable guideline is 0.3 mg per kg body weight per... actually 1.6 ug/kg-week. I'll use ~0.3mg/day for 70kg.

Worked example

300 g/week of tuna at 0.3 ppm is 0.09 mg, within limits.

FAQ

Which fish are high-mercury?

Large predators like shark, swordfish and king mackerel are highest.

The math behind it

Worked example

FAQ

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