Weight and Balance Calculator on EFB

Updated 24th March 2026

Many Electronic Flight Bag (EFB) applications have limited use when it comes to weight and balance (or mass and balance).

More concerning, these calculations are often not stored in a flight summary or central data storage.

As a result, pilots have to switch between multiple apps or perform manual weight and balance calculations that aren't being logged effectively!

EFB Weight & Balance Calculator

Weight and Balance within skybook enhances crew efficiency by allowing instant access to W&B calculations within the flight-phase workflow.

The correct weight and balance configurations for the aircraft are automatically shown, based on the sector chosen by the pilot.

During the pre-flight briefing, pilots can use the weight & balance calculator to review load and fuel weights and ensure they remain within the safe operating limits on the center of gravity (CG) graph.

Basic Operating Weight (BOW) is automatically retrieved from the aircraft configuration data entered during setup. 

The weights for Zero Fuel Weight (ZFW), Take-off Weight (TOW), Landing Weight (LDW) are then auto calculated based on the load and fuel information.

These weights are instantly plotted onto the aircraft's CG envelope to ensure the aircraft is properly loaded before taking off. If any calculations fall outside the CG envelope, a warning will be triggered and the loadsheet cannot be signed off.

W&B Loadsheet sign off

Crew members can only view and sign off the digital load sheet when the CG is within the correct envelope safety limits and their is commander assigned.

The loadsheet can be signed and sent to specific emails and it will sync to the ground flight summary data. Dispatchers can also view this digital handshake as part of the pre-flight status update.

Crew can also sync the W&B data with other EFB deviceson flight deck.

W&B Aircraft Configuration

To utilize the EFB Weight and Balance calculator, the aircraft details must be configured within the ground portal.

The Weight & Balance and center of gravity information, is typically found in the aircraft’s manual, and entered by the operator during onboarding and setup.

The W&B configuration involves  various profiles such as Pax & Cargo, PAX only or Cargo only.

Each profile is set up with data for Basic Weights, Weight Limits, and Constants. The station data for the aircraft is configured, including weight information and limits for seat rows, cargo and fuel.

Last minute changes (LMC) calculator

skybook also includes a Last Minute Change calculator, allowing crew to make minor alterations to the aircrafts load within the CG envelope limit.

This provides additional revenue opportunities and streamlines the process for airlines, allowing them to accurately manage last-minute changes to include extra passengers, baggage, or cargo while maintaining safe weight and balance.

If a CG limit is exceeded, the LMC calculator will display a warning alert showing the maximum allowable weight, permissible changes, or index value for that aircraft.

Any last minute changes are shown in the weight and balance calculations, EFB loadsheet and sent to the ground flight summary, before signing the flight off for departure.

Want to try Weight & Balance?

The skybook weight and balance calculator is an intuitive EFB tool designed to support operators worldwide.

Delivering accurate calculations, streamlined workflows, improved safety compliance, seamless data integration and opportunities to drive additional revenue.

Get in touch to see a demonstration of the EFB W&B calculator. Alternatively, you can learn more about skybook.

Frequently Asked Questions