Enter your bag's length, width, and height to calculate its linear inches — the total size airlines use to check luggage compliance. Most carriers enforce a 62 linear inch limit for checked bags. You'll instantly see your total linear size and whether your luggage meets the standard airline requirement. Also try the Flight Duration Calculator.
Total Linear Inches
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Total Linear Centimeters
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Difference from Airline Limit
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Compliance Status
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Linear inches is the sum of the three dimensions of a bag or piece of luggage — length + width + height. It's a single number that represents the overall size of an item, commonly used by airlines and shipping companies to standardize size limits. See also our Jet Lag Calculator.
Simply add the length, width, and height of your bag together: Linear Inches = L + W + H. For example, a bag that is 27 inches long, 19 inches wide, and 11 inches tall has 27 + 19 + 11 = 57 linear inches.
The 62 linear inch limit is the maximum combined size (length + width + height) allowed for checked luggage by most major airlines. If your bag exceeds 62 linear inches, you may face oversized baggage fees or be required to ship it separately.
A 62 linear inch bag is any piece of luggage whose length + width + height equals no more than 62 inches. A common example would be a 27" × 21" × 14" suitcase (62 inches total). Many large checked suitcases are designed to meet this limit. You might also find our Passport Renewal Reminder Calculator useful.
A bag measuring 30 inches × 18 inches × 14 inches has a linear size of 30 + 18 + 14 = 62 linear inches — right at the standard airline limit for checked baggage.
Airlines use linear inches to enforce consistent size restrictions for luggage, ensuring bags fit within cargo hold space. It's a practical single-number measurement that accounts for all three dimensions of a bag, making it easier to apply a universal standard across different bag shapes.
Most major international and domestic carriers use 62 linear inches (158 cm) as the standard limit for checked bags. However, some airlines or fare classes may have different limits, so it's always best to check your specific airline's baggage policy before you travel.
Yes. To convert linear inches to centimeters, multiply by 2.54. The equivalent of 62 linear inches is approximately 157.5 cm (often rounded to 158 cm), which is the limit used by many airlines in metric-system countries.