There are several different sizes of drinking straws. From smallest to largest, the straw sizes are classified as school milk, jumbo, super jumbo, giant, boba, and colossal. Each has a different diameter, which means they are all used for drinking different beverages. For example, colossal straws are extra large beverage straws that are best for thicker drinks like smoothies, milkshakes, bubble tea, or slushies, whereas school milk straws are much shorter in length, smaller in diameter, and are best for use with milk and juice cartons or kids' drinks.
We've listed the diameters below for each straw size. For reference, the standard drinking straw diameter is 0.25".
1. School Milk Straws: 0.13" Diameter
2. Jumbo Straws: 0.219" Diameter
3. Super Jumbo Straws: 0.25" Diameter
4. Giant Straws: 0.296" Diameter
5. Boba Straws: 0.375" Diameter
6. Colossal Straws: 0.47" Diameter