To calculate linear inches, simply determine the length, width and height of a baggage item and add them together. You need a tape measure or ruler and a calculator.
- Measure the length, width and height of the luggage
Using a tape measure or ruler, measure the length, width and height of the outside of the luggage in inches. Include objects such as wheels and outer compartments when measuring.
- Find the sum of the three measurements
Using a calculator, add the length, width and height together. The total is the linear inches measurement of the luggage.
- Know your limits and fees
Linear inches are used in the travel industry to impose restrictions for carry-on and checked luggage. Find out about any restrictions and additional fees in advance.