Linear Inches Calculator
Calculate linear inches from length, width, and height. Check airline luggage size limits for carry-on and checked bags.
What Are Linear Inches?
Linear inches is the sum of a bag's length, width, and height. Airlines use this measurement to enforce luggage size limits for carry-on and checked bags. Our Linear Inches Calculator adds the three dimensions instantly and checks them against common airline limits.
Linear Inches Formula
$$Linear\ Inches = Length + Width + Height$$
All dimensions must use the same unit, typically inches. If you measure in centimeters, the calculator converts to inches automatically.
Airline Luggage Limits
Limits vary by airline, but common guidelines are:
- Carry-on: often 45 to 50 linear inches
- Checked baggage: often 62 linear inches
Always include wheels, handles, and external pockets when measuring. A bag labeled 30 × 18 × 14 inches equals 62 linear inches, which is a typical checked bag limit.
Frequently Asked Questions
What is a 62 linear inch suitcase?
A 62 linear inch bag has length, width, and height that add up to 62 inches. Example: 30 + 18 + 14 = 62 inches, a common checked bag size.
How do I measure luggage for linear inches?
Measure the longest side as length, the side width as width, and the depth including handles and wheels as height. Add all three values together.
Is linear inches the same as cubic inches?
No. Linear inches is a simple sum of three dimensions. Cubic inches is length times width times height, measuring volume instead of perimeter-style size.
Can I enter dimensions in centimeters?
Yes. Select centimeters and enter your measurements. The tool converts to inches before calculating linear inches and checking airline limits.
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