Enter the Muscle Mass, Body Fat Mass, Protein Mass, and Skeletal Muscle Mass into the calculator to determine the Inbody Score.

Inbody Score Formula

The following formula is used to calculate the Inbody Score.

IS = (0.3 * M) + (0.3 * B) + (0.2 * P) + (0.2 * S)


  • IS is the Inbody Score M is the Muscle Mass (kg) B is the Body Fat Mass (kg) P is the Protein Mass (kg) S is the Skeletal Muscle Mass (kg)

To calculate the Inbody Score, multiply the Muscle Mass by 0.3, the Body Fat Mass by 0.3, the Protein Mass by 0.2, and the Skeletal Muscle Mass by 0.2. Add all these results together to get the Inbody Score.

What is an Inbody Score?

An Inbody Score is a comprehensive measure of a person’s body composition, including body fat, muscle distribution, and body water balance. It is derived from a bioelectrical impedance analysis (BIA) test conducted using an InBody machine. The score helps in understanding a person’s overall health and fitness level, and can guide in creating personalized workout or diet plans. It can also help in tracking the progress of a fitness or health regimen over time.

How to Calculate Inbody Score?

The following steps outline how to calculate the Inbody Score using the given formula:

  1. First, determine the value of Muscle Mass (M) in kilograms (kg).
  2. Next, determine the value of Body Fat Mass (B) in kilograms (kg).
  3. Next, determine the value of Protein Mass (P) in kilograms (kg).
  4. Next, determine the value of Skeletal Muscle Mass (S) in kilograms (kg).
  5. Using the formula IS = (0.3 * M) + (0.3 * B) + (0.2 * P) + (0.2 * S), calculate the Inbody Score.
  6. After inserting the values of M, B, P, and S into the formula and calculating the result, you will obtain the Inbody Score (IS).

Example Problem:

Use the following variables as an example problem to test your knowledge:

Muscle Mass (M) = 50 kg

Body Fat Mass (B) = 20 kg

Protein Mass (P) = 15 kg

Skeletal Muscle Mass (S) = 30 kg