Aircraft weight and balance calculator

Weight and balance checks, before every flight, that the aircraft does not exceed its maximum weight and that its center of gravity (CG) stays inside the approved envelope. An out-of-limits CG affects stability and control even when the total weight is fine.

CheckCG adds the empty weight and every loading station (crew, passengers, baggage and fuel), computes the resulting moment and CG and checks them against the manufacturer's envelope, including landing and zero-fuel conditions. It runs in your browser, with no sign-up and offline.

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Supported aircraft