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Lung Capacity

Result

Calculated result 12 Based on the values entered.
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Lung Capacity — free online calculator.

Formula

FEV₁/FVC × 100%; <70% = obstruction (GOLD criteria)
  • Lung Capacity calculates its result from Fev1, Fvc, Obstruction Gold Criteria. It uses the formula FEV₁/FVC × 100%; <70% = obstruction (GOLD criteria). Change any input to recalculate the result instantly. This is an informational calculation and is not medical advice.
  • The main inputs are Fev1, Fvc, Obstruction Gold Criteria. 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: Lung Capacity

Inputs
  • Fev1: 2
  • Fvc: 3
  • Obstruction Gold Criteria: 12

Using Fev1 = 2, Fvc = 3, Obstruction Gold Criteria = 12, the calculated result is 12.

Sample result: Calculating…

Frequently asked questions

What does the Lung Capacity calculate?

Lung Capacity — free online calculator.

Which values should I enter?

Enter Fev1, Fvc, Obstruction Gold Criteria using the units and format shown beside each field.

What formula does this calculator use?

The calculator uses the following relationship: FEV₁/FVC × 100%; <70% = obstruction (GOLD criteria).

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