flight calculators

Aircraft Weight and Balance Calculator

Calculate aircraft center of gravity and verify weight limits for safe flight operations

About this calculator

The Aircraft Weight and Balance Calculator is an essential flight safety tool that determines your aircraft's center of gravity (CG) position and verifies compliance with weight limits. Proper weight and balance calculations are critical for flight safety, affecting aircraft performance, stability, and control characteristics. This calculator helps pilots and flight planners ensure their aircraft remains within certified operating envelopes before takeoff, preventing dangerous flight conditions that could result from improper loading or exceeding maximum weight limits.

How to use

Enter your aircraft's empty weight and moment, then add passenger weights and their seating positions. Include fuel quantity and cargo weights with their respective arm distances from the datum point. The calculator will compute the total weight, moment, and center of gravity position, displaying whether your configuration falls within safe operating limits.

Frequently asked questions

What happens if my aircraft exceeds weight limits?

Exceeding weight limits reduces performance, increases stall speed, and may compromise structural integrity. Flight should not proceed until weight is reduced.

How often should I perform weight and balance calculations?

Weight and balance must be calculated before every flight when loading changes, including passengers, cargo, or fuel adjustments.

What is the aircraft datum point?

The datum is a fixed reference point from which all arm measurements are taken, typically located at the aircraft nose or firewall.