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Wind Gust Factor and Measured Turbulence

Calculate gust factor and turbulence intensity from defined measurements, or explore an entered gust-factor case with explicit averaging durations.

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Inputs that matter
Measured mean speed (m/s), Measured maximum gust speed (m/s), Speed standard deviation (m/s), Gust averaging duration (s), and 4 more
Output to expect
Measured gust factor and turbulence, Entered gust-factor scenario
  • Check the units and required inputs before comparing results.
  • Keep the assumptions with a copied result so you can reproduce the calculation later.
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Reference & details

How it works

Measured gust factor and turbulence

Calculate a gust/mean ratio from compatible measurements and a turbulence-intensity ratio from a supplied standard deviation. Preserve gust and mean averaging durations, which change the interpretation.

Gust factor = gust speed / mean speed; turbulence intensity = speed standard deviation / mean speed.

Entered gust-factor scenario

Translate a documented gust factor and mean speed into a scenario gust at the stated averaging durations. The factor is supplied, not derived from the duration or an extreme-value model.

Scenario gust speed = mean speed × entered gust factor.

Updated: September 2026

Example Scenarios

Try this example to see the calculation, then enter actual documented values and preserve the measurement conditions. A failed or unresolved comparison is part of the record.

→ 1.5 measured gust factor

Try this example to see the calculation, then enter actual documented values and preserve the measurement conditions. A failed or unresolved comparison is part of the record.

→ 12 m/s scenario gust

FAQ

Calculate a gust/mean ratio from compatible measurements and a turbulence-intensity ratio from a supplied standard deviation. Preserve gust and mean averaging durations, which change the interpretation. Translate a documented gust factor and mean speed into a scenario gust at the stated averaging durations. The factor is supplied, not derived from the duration or an extreme-value model.

Use the exact equipment data, measurement point, operating conditions and units described in the selected mode. Record source documents, dates and unresolved conditions in Sources and assumptions. Built-in examples illustrate arithmetic; they are not manufacturer ratings or approved designs.

Use Save planning case for an explicit local history entry. Copy MD keeps current inputs and notes; Download CSV exports the result breakdown. Export portable copies before clearing storage and save a separate case after changing equipment, conditions or measurements.

About Wind Gust Factor and Measured Turbulence

Calculate a gust/mean ratio from compatible measurements and a turbulence-intensity ratio from a supplied standard deviation. Preserve gust and mean averaging durations, which change the interpretation. Translate a documented gust factor and mean speed into a scenario gust at the stated averaging durations. The factor is supplied, not derived from the duration or an extreme-value model.