45 linear inches is pretty big! It’s about the size of a carry-on suitcase, or a medium-sized backpack. To put it in perspective, a standard piece of paper is about 11 inches wide, so 45 linear inches is about four times that size.

## Other related questions:

### Q: What is 45 linear inches for carry-on luggage?

A: 45 linear inches is the maximum size for carry-on luggage. This includes the length, width, and depth of the bag.

### Q: How do you measure linear inches for carry-on luggage?

A: There is no definitive answer to this question as different airlines have different size restrictions for carry-on luggage, so you will need to check with your specific airline to get their requirements. However, in general, you can measure linear inches by adding together the length, width, and depth of the bag. For example, if your bag is 20 inches long, 14 inches wide, and 8 inches deep, your total linear inches would be 20 + 14 + 8 = 42.

### Q: How do I figure out linear inches?

A: To figure out linear inches, you will need to measure the length and width of the item in inches. Once you have those measurements, you will need to add them together to get the total linear inches.

### Q: How many linear inches is a carry-on?

A: There is no definitive answer to this question as different airlines have different size restrictions for carry-on luggage, but a good rule of thumb is that a carry-on should be no larger than 45 linear inches (the sum of the length, width, and depth of the bag).