RBC Indices Calculator | What is MCHC?

If you have ever wondered what the MCHC is in your blood test, how you calculate MCV, or how to calculate those RBC indices in general, you're in the right place. RBC indices calculator will answer all those questions and more. Do you know what low RBC, hemoglobin, and hematocrit indicate? Read on to find out and be able to read those lab test results on your own!

We try our best to make our Omni Calculators as precise and reliable as possible. However, this tool can never replace a professional doctor's assessment. If any health condition bothers you, consult a physician.

RBC indices are the parameters that are not directly measured in the laboratory. Instead, they're calculated from the other, previously measured values, such as hemoglobin, hematocrit, and red blood cells (RBC) count.

The RBC indices are:

• MCH,
• MCHC,
• MCV.

Let's dive deeper into each of those.

1. MCH – or mean corpuscular hemoglobin – describes how much hemoglobin (expressed in mass unit) there is in each red blood cell; the unit we usually use is a pg/cell (pg = picogram = 10^-12g).
2. MCHC – mean corpuscular hemoglobin concentration – gives us an idea of the mean concentration of hemoglobin in all the red blood cells, expressed in gram/deciliter.
3. MCV – mean corpuscular volume – describes the size of a red blood cell in femtoliters (10^-15 l).

RBC indices are usually interpreted together with the set of other lab values, basic morphology being the most crucial. They can inform us about a condition called anemia, which means not enough red blood cells for your organism's needs. They can give us a hint about the type of anemia and a possible deficiency of some nutrients, such as vitamin B12, iron, or folate. They will also give us precious information if we're dealing with a condition of 'too much red blood cells' – polycythemia.

To use the RBC indices calculator:

1. Choose your sex in the first row. Some blood parameters' ranges are gender-specified.
2. Fill in your hemoglobin, hematocrit, and red blood cell count in the first panel.
3. You will see the calculated parameters: MCH (mean corpuscular hemoglobin), MCHC (mean corpuscular hemoglobin concentration), and MCV (mean corpuscular volume) in the second panel right away.
4. You'll see your blood test results interpretation below the calculator panel.
5. Now you know how to use the RBC indices calculator. If you're interested in how to calculate those RBC indices on your own, keep on reading the text.
6. Remember that the ranges' values may differ between laboratories. If anything bothers you, always check with your physician.

Knowing just the three basic blood morphology parameters – hemoglobin, hematocrit, and red blood cell count (Hgb, Hct, RBC count) allows you to calculate some additional indicators – MCH, MCV, and MCHC.

RBC indices calculation formulas are:

• For MCH (mean corpuscular hemoglobin):

  MCH [pg/cell] = HGB [g/dL] / RBC [million cells/mcL] × 10

• For MCV (mean corpuscular volume):

  MCV [fl] = (HCT [%] / RBC [million/mcL]) × 10

• For MCHC (mean corpuscular hemoglobin concentration):

  MCHC [g/dL] = HGB [g/dL] / HCT [%] × 100

Low values of the set of three parameters – red blood cells, hemoglobin, and hematocrit – is a definition of a condition called anemia. That means our body feels like there's not enough blood to meet its needs. Anemia can manifest as:

• Fatigue, tiredness;
• Paleness of the skin;
• Fast heartbeat (tachycardia);
• Brittle, thin hair and nails; and
• Shortness of breath (especially during physical activity).

If anemia develops slowly, the body has time to adapt to the changing conditions. That's why many cases of anemia stay asymptomatic and they get caught only with routine laboratory tests.

Treatment of anemia encompasses a search for the cause, excluding potentially life-threatening ones, and very often – vitamin B12, folate, or iron deficiency.

To calculate hematocrit from hemoglobin:

1. The hematocrit to hemoglobin] ratio is 3:1 in a healthy adult.
2. You need to assume that a patient is a healthy person. This ratio will vary in case of some health conditions. You can always use the hematocrit hemoglobin ratio calculator to count that.
3. Now, you need to multiply your hemoglobin value by three: hematocrit [%] = hemoglobin [g/dL] × 3.
4. To calculate the other way around, just divide the hematocrit by three: hemoglobin [g/dL] = hematocrit [%] / 3.