Stall Speed Calculator

Inputs

Aircraft weight (W)

Loaded aircraft mass/weight for the stall-speed estimate.

kg

Wing area (S)

Planform wing area.

m²

Air density (rho)

Use local density if known; standard sea-level density is 1.225 kg/m3.

kg/m³

Maximum lift coefficient (CLmax)

Results

Default result

Estimated stall speed(Vs)

94.4km/h

Pass

Also computed

Wing loading64.4kg/m²

Dynamic pressure at stall421Pa

Method notes 2 notes

Uses Vs = sqrt(2W / (rho * S * CLmax)) with W = mass * g.
Actual stall speeds depend on configuration, CG, propwash, contamination, position error and the approved flight manual.

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