Enter the total cost of time and the total cost of fuel into the calculator to determine the airline cost index.

## Airline Cost Index Formula

The following formula is used to calculate an airline cost index.

ACI = TCT / TCF

- Where ACI is the airline cost index
- TCT is the total cost of time ($/hr)
- TCF is the total cost of fuel ($/lb)

To calculate the airline cost index, divide the total cost of time by the total cost of fuel.

## What is an airline cost index?

Definition:

An airline cost index is defined as the ratio of time-related costs of operation of a plane to the total cost of fuel used in the same time.

## How to calculate an airline cost index?

Example Problem:

The following example outlines how to calculate an airline cost index.

First, determine the total cost of time-related operations on the airline. In this example, the time related costs are calculated to be $1,000.00/hr.

Next, determine the total cost of fuel. In this case, the cost of fuel is measured to be $2.45/lb.

Finally, calculate the airline cost index using the formula above:

ACI = TCT / TCF

ACI = 1000/2.45

ACI = 408.1