Performance Takeoff Calculator

Takeoff ground roll and total distance corrected for density altitude, weight, wind, and gradient.

Field elevation (ft)

Outside air temp (°C)

Altimeter setting (inHg)

Takeoff weight (lb)

POH reference weight (lb)

POH ground roll (ft)

POH total distance (ft)

Headwind (kts, neg=tail)

Runway gradient (%)

Tab to move between fields

Ground roll (ft)

1,606

Total over 50 ft (ft)

2,818

Density altitude (ft)7,400

Pressure altitude (ft)5,000

ISA deviation (°C)20

Soft field roll (ft)1,846

Weight factor0.89

Wind factor1

How to Use This Calculator

Enter field elevation (ft), outside air temperature (°C), and altimeter setting (inHg).
Set actual takeoff weight (lb) and the POH reference weight and ground roll.
Review density altitude, corrected ground roll (ft), and total takeoff distance over 50 ft obstacle.
Verify takeoff distance fits within the available runway, applying appropriate POH correction factors.
Hot, high, or heavy conditions dramatically increase required takeoff distance — plan accordingly.

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