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Visceral Fat Estimate Calculator

Work out visceral fat estimate instantly with clear inputs, formula shown and shareable results.

About Visceral Fat Estimate Calculator

Visceral fat cannot be measured directly without imaging, but it correlates strongly with waist circumference, BMI and age. This index combines those three in the manner of bioimpedance scale algorithms, scaled 1-20 where 10 and above is elevated. Only CT or MRI gives a true visceral fat area; this is a screening estimate.

Formulas

Composite index

index = 0.35(waist - reference) + 0.3(BMI - 20) + 0.06(age - 30)

Interpretation

10 and above is considered elevated on scale-style indices

Worked example

With the default values below, Visceral Fat Estimate Calculator returns Visceral Fat Index of 11.8. Change any input above and every figure here is recalculated in your browser.

Inputs used

Waist circumferenceminimum 30 cm
95 cm
Body mass indexaccepts 10–70 kg/m2
27 kg/m2
Ageaccepts 18–100 years
45 years
Sexone of Male, Female
Male

Results

Visceral Fat Index
11.8 /20
Estimated Visceral Fat Area
140 cm2
Assessment
Elevated - worth active management
Points From Waist Circumference
8.8

Step by step

  1. 1Values used
  2. 2Composite index
  3. 3Interpretation
  4. 4Visceral Fat Index= 11.8 /20
  5. 5Estimated Visceral Fat Area= 140 cm2
  6. 6Assessment= Elevated - worth active management
  7. 7Points From Waist Circumference= 8.8

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • These figures are population-average estimates, not a medical assessment or diagnosis. Body composition equations carry errors of several percentage points, and healthy ranges vary with age, ethnicity, muscularity and medical history. Discuss weight or body composition goals with a qualified clinician or dietitian.
  • This is an estimate for general information and not professional medical advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

These figures are population-average estimates, not a medical assessment or diagnosis. Body composition equations carry errors of several percentage points, and healthy ranges vary with age, ethnicity, muscularity and medical history. Discuss weight or body composition goals with a qualified clinician or dietitian.

Frequently Asked Questions

Why does visceral fat matter more than subcutaneous?

Because it drains into the portal vein, delivering fatty acids and inflammatory cytokines directly to the liver, which drives insulin resistance.

Can visceral fat be lost preferentially?

It responds faster than subcutaneous fat to calorie deficit and aerobic exercise, so early waist reduction usually reflects visceral loss.

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