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Beep Test VO2max Calculator

Convert your beep test result into an estimated VO2max.

Result

45.25 ml/kg/min

How it is calculated

The tool turns the level and shuttle you reached on the 20 m shuttle run into a VO2max estimate with the St Clair Gibson regression. It converts the shuttle number into a fraction of a level, shuttle ÷ (level × 0.4325 + 7.0048), adds that to the level, multiplies by 3.46 and adds 12.2: VO2max = 3.46 × (level + shuttle ÷ (level × 0.4325 + 7.0048)) + 12.2. The result is in ml/kg/min. Level and shuttle must be whole numbers: level 1 to 21 and shuttle 0 to 16, since a level has at most 16 shuttles. Anything else, including 6.5 shuttles or level 22, gives no result. Age, sex and weight are not used, and this is a field estimate, not a laboratory measurement.

Worked example

You stopped at level 9, shuttle 6. The level-dependent divisor is 9 × 0.4325 + 7.0048 = 10.8973. The shuttle fraction is 6 ÷ 10.8973 = 0.5506. Add it to the level to get 9.5506. Multiply by 3.46 to get 33.045 and add 12.2. The estimate is 45.25 ml/kg/min. With level 9 and no shuttles counted the result would be 43.34, so six shuttles add about 1.9.

Try this example →

Common mistakes

  • Entering the total number of shuttles run instead of the count within the current level. The shuttle field is counted from the start of the level you were on, and values above 16 are rejected.
  • Using a test on a 15 m or other course. The equation is built for the 20 m version, and a shorter course gives a result that is not comparable.
  • Mixing up level and shuttle when reading the recording. Some recordings announce the level only; write down the last level you heard and how many beeps you completed after it.
  • Typing a decimal such as level 9.5 for a half-completed level. Only whole numbers are accepted; use the whole level plus the shuttle count.
  • Treating the result as a laboratory VO2max. The formula is one population regression and ignores age, sex and body size.

About this calculator

The 20 m multi-stage shuttle run (the “beep test”) estimates aerobic fitness without lab equipment by having you run back and forth between two lines 20 m apart, keeping pace with a progressively speeding audio signal until you can no longer keep up — the level and shuttle reached at that point maps to an estimated VO2max via a published regression equation (this page uses the St Clair Gibson regression; the Léger equation is another common one).

Sports teams, military and police fitness testing, and school PE programs use the beep test because it requires nothing beyond a flat 20 m space and a recording, making it far more practical for testing groups than treadmill VO2max testing, while still correlating well enough with lab-measured VO2max to be used for fitness benchmarking and squad selection.

This calculator takes the level and shuttle number you reached and returns your estimated VO2max using that regression formula, not a lookup table. Level runs from 1 to 21 and shuttle from 0 to 16, both as whole numbers.

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