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Iron Deficiency

Iron Deficiency: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.

ℹ Reference calculation based on the published method. It does not replace a clinical examination or a doctor's decision.

Iron Deficiency

Body weightkg
Hemoglobing/L
Target hemoglobing/L
Iron deficit, mg
1,508mg
A guide for the total parenteral iron dose — prescribed by a physicianIron Deficiency: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.
Hemoglobin iron deficit
1008mg
Iron stores repletion
500mg

More about: Iron Deficiency

What it calculates

The “Iron Deficiency” calculator computes Iron deficit, mg in mg from 3 parameters: body weight (kg), hemoglobin (g/L), target hemoglobin (g/L).

Used by professionals and patients to assess health metrics, dosages, and risks.

Example calculation

With parameters Body weight = 70 kg, Hemoglobin = 90 g/L, Target hemoglobin = 150 g/L the result is 1,508 mg (A guide for the total parenteral iron dose — prescribed by a physician).

How to use

  1. Enter body weight, hemoglobin and target hemoglobin — each field above is adjustable with a slider.
  2. Iron deficit, mg (mg) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is BMI calculated?
BMI = weight (kg) / height (m)². Example: 70 kg / (1.75 m)² = 22.9. The WHO normal range is 18.5–24.9; below that is underweight, 25–29.9 is overweight, and 30+ is obese.
Is BMI accurate for everyone?
No. BMI does not distinguish muscle from fat, so athletes may show a high BMI with low body fat. It is also less reliable for teenagers, pregnant people, older adults, and very tall or short individuals.
What are the BMI categories?
Underweight: below 18.5. Normal: 18.5–24.9. Overweight: 25–29.9. Obese class I: 30–34.9; class II: 35–39.9; class III: 40+.
What is a better measure than BMI?
Body fat percentage, waist-to-height ratio (aim for under 0.5), and waist circumference give a clearer picture of health than BMI alone.

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