Enter your fuel load, passenger weights, and baggage — get gross weight, CG position, and an instant visual showing whether you're inside the envelope. Pre-loaded for Cessna 172S and Piper Cherokee 180.
⚠ For training and reference only. Always use your aircraft's actual POH/AFM for official weight & balance calculations before flight.
Enter weights in pounds. Fuel in gallons (Avgas = 6 lb/gal).
| Item | Weight (lb) | Arm (in) | Moment (lb·in) |
|---|
Weight refers to the total loaded weight of the aircraft. It must not exceed the maximum gross weight specified in the POH. Exceeding maximum gross weight degrades performance, increases stall speed, and may exceed structural limits.
Balance refers to the location of the center of gravity (CG) — the point where the aircraft would balance if suspended. The CG must remain within the forward and aft limits specified in the POH for all phases of flight.
Forward CG limit: Increases stability but makes the aircraft harder to rotate for takeoff and increases stall speed. Aft CG limit: Reduces stability and control effectiveness. Flying beyond the aft CG limit can make the aircraft uncontrollable.
Always use your specific aircraft's POH/AFM for official calculations. Empty weight and arm values vary between individual aircraft of the same model.