Choosing the right backpack size can be tricky, whether it’s for school, work, travel, or daily use. In this guide, I’ll answer the most common questions about standard backpack sizes—from kids’ school bags to travel packs—so you can find the best fit for your needs. Part 1. What is the standard backpack size in liters? Most standard backpacks range from 20L to 30L, which is suitable for everyday use, school, or light travel. This size fits essentials like books, a laptop, and personal items without being bulky. Part 2. What is the average size of a school backpack? A typical school backpack is 20L to 30L. It’s large enough to

When I first started flying with a duffel bag instead of a suitcase, I quickly realized that airline size rules can be tricky. A few inches too big and suddenly you’re paying extra fees at the gate. In this guide, I’ll walk through the most common questions travelers ask about duffel bag sizes, so you can pack smarter and avoid surprises at the airport. Part 1. What is the standard carry-on duffel bag size? Most airlines allow carry-on bags up to 22 x 14 x 9 inches (56 x 36 x 23 cm). A duffel bag that fits within these dimensions can usually be used as a carry-on. Since duffels