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Skinfold Body Fat Calculator

Result

Calculated result 1.1043403 Based on the values entered.
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Skinfold Body Fat Calculator — free online calculator.

Formula

density = 1.10938 − 0.0008267×S + 0.0000016×S² − 0.0002574×age
  • Skinfold Body Fat Calculator calculates its result from Age, S. It uses the formula density = 1.10938 − 0.0008267×S + 0.0000016×S² − 0.0002574×age. Change any input to recalculate the result instantly. This is an informational calculation and is not medical advice.
  • The main inputs are Age, S. Enter them in the units and format shown in the calculator.
  • Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
  • Changing any input above recalculates the result with the same calculation engine used by this page.

Example: Skinfold Body Fat

Inputs
  • Age: 10
  • S: 3

Using Age = 10, S = 3, the calculated result is 1.1043403.

Sample result: Calculating…

Frequently asked questions

What does the Skinfold Body Fat calculate?

Skinfold Body Fat Calculator — free online calculator.

Which values should I enter?

Enter Age, S using the units and format shown beside each field.

What formula does this calculator use?

The calculator uses the following relationship: density = 1.10938 − 0.0008267×S + 0.0000016×S² − 0.0002574×age.

Why might my result differ from another source?

Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.

Does the result update automatically?

Yes. Changing an input updates the result using the same calculation engine shown on this page.

Page information

Updated: October 7, 2026