How do you measure linear inches on a suitcase?

The calculation is easy; just add the total of the length plus the width plus the height of the case to calculate its size in linear inches. You must include wheels and handles in your measurements. If you want to convert to centimeters, multiply the number in inches by 2.54.



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Linear inches – or really, any linear dimension – simply refer to the sum total of your bag's length, width and depth. So, if your bag measures 28 inches high, 13 inches wide and 10 inches deep, its linear measurement or linear dimensions would be 28 + 13 + 10 = 51 linear inches.

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Suitcase size: all suitcase manufactures measure the size of the suitcase from the ground to the top of the carry handle, not the internal measurements of the bag.

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For example, if your bag is 24 inches tall, 20 inches long and 18 inches wide, its total linear length is 62 inches.

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Measuring the size of your luggage isn't tricky. Most airlines require that your bag be 62 linear inches or less. Therefore, your bag's length, width and height cannot exceed 62 inches. This measurement includes the wheels and the handle of your luggage.

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It's calculated by adding together the outside length, width, and height of a suitcase or bag. For example, if your bag measures 24 inches long, 18 inches wide, and 20 inches high, its linear inches would be 62 (24+18+20=62).

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New 30'' Light-weight Expandable Wheeled Bag for Travel Holds 50 Lbs.

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In general, if you're bag is not within the size restrictions at the check-in counter, different airlines will charge you a late check-in fee.

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Small checked suitcases usually are 23-24 inches on the longest size, medium ones 25-27 inches, and large ones in 28-32 inches. Quite often, suitcases above 30 inches will actually be oversized, because they're over 62 linear inches with wheels and handles included.

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While some airlines, primarily Southwest and Spirit Airlines, will allow a bag up to 50 linear inches, it's best to go for one that is around 45 linear inches or less.

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Use a luggage scale. This is the most accurate way to measure the weight of your luggage.

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American Airlines overweight baggage is considered any bag weighing more than 50lbs. The fees for checking overweight baggage are $100 for bags weighing 51-70lbs and $200 for bags weighing 71-100lbs. These fees are charged in addition to any standard, excess or oversized baggage fees.

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The calculation is easy; just add the total of the length plus the width plus the height of the case to calculate its size in linear inches. You must include wheels and handles in your measurements. If you want to convert to centimeters, multiply the number in inches by 2.54.

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Pay a Fee at the Airport Every airline company has its own rules for overweight suitcases, but generally speaking, if your suitcase is just over 50 lbs (23 kgs), which is the limit for most airlines, then you can still bring your suitcase with you. In that case, all you need to do is pay the fee, and you're good to go.

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