Understanding Latex Balloon Sizes & Float Times
Latex balloons are a must-have for all types of events, from kids’ birthdays and weddings to corporate launches and baby showers. They’re colorful, fun, and come in a range of sizes to suit any type of decor. But not all latex balloons are the same. Depending on the size and the type of helium used, their float times can vary greatly.
At BalloonStudio, we use high-quality helium that’s designed to give balloons the best possible float time. Unlike lower-cost, “balloon grade” helium which is often diluted with air, our helium keeps balloons floating longer and more consistently. That means your decor stays looking fresh and festive throughout your event.
Common Latex Balloon Sizes
5” Balloons
These mini balloons are perfect for garlands, centerpieces, and other decorative accents. They’re too small to float, so they’re always air-filled and used in clusters or as fillers.
11” Balloons (Standard)
This is the classic size most people think of when they picture a party balloon. These have a teardrop shape and are great for bouquets, ceiling installations, or balloon walls. They float well with helium and can be treated with Hi-Float gel to extend their float time.
18” Balloons
A bit larger and rounder than the standard 11″, these give a more full and polished look. They float longer than 11″ balloons and are often used in premium bouquets or luxury installs.
24” Balloons
These are large, round balloons that make a statement. They’re often used for organic arches, large clusters, or photo backdrops. They hold more helium, which gives them an even longer float time. Often seen as backdrops in a “bubble-strand” like display, or on tables as centerpieces.
36” Balloons (Jumbo)
The jumbo balloon! These are oversized and perfectly round, ideal for wedding centerpieces, dramatic displays, branding events and grand openings, gender reveals, or large-scale balloon drops. Because of their size, they take up quite a bit of helium. These are often used in car dealerships as grand displays. They’re perfect for high-impact photo ops and feature pieces.
Indoor Float Time Comparison
Float time can vary based on whether or not the balloon is treated with Hi-Float gel, which coats the inside of the balloon and slows down helium loss. Here’s what you can expect when balloons are used indoors:
| Balloon Size | Float Time with Hi-Float | Float Time without Hi-Float |
|---|---|---|
| 11” | Up to 3 days (Indoors) | 12 Hours or Less (Indoors) |
| 18” | Up to 5 days (Indoors) | 12–24 hours (Indoors) |
| 24” | Up to 10 days (Indoors) | 24–36 hours (Indoors) |
| 36” | Up to 20 days (Indoors) | 24–36 hours (Indoors) |
Important: There is no guaranteed float time for outdoor use. Weather, temperature, wind, and direct sunlight all affect how long a balloon lasts outside.
Helium Balloons will appear smaller each day, and decrease about 15% in size every 12 hours.
What Are Cloudbusters?
Cloudbusters are giant latex balloons that range from 4 to 8 feet in diameter. They require a lot of helium and are typically used for grand openings, festivals, and outdoor installations where visibility matters. Tethered high above the ground, they float impressively and create a dramatic impact. Because of their size, they need to be anchored securely and filled with high-quality helium to stay afloat. Contact BalloonStudio for an in-depth quote with available latex sizes and colours.
The Role of 5″ Balloons in Decor
Although they don’t float, 5” balloons play a huge role in balloon styling. These small balloons are used in balloon garlands, table arrangements, and as detail work in organic balloon decor. They help add texture, depth, and variation to larger displays. They’re air-filled and do not require any helium.
Final Thoughts
Choosing the right latex balloon size for your event can make all the difference, not just in how your display looks, but in how long it lasts. Whether you need small details or oversized wow-factor pieces, understanding the differences in size, float time, and helium quality can help you plan better and avoid last-minute surprises.
At BalloonStudio, we use only high-grade helium, not the “balloon mix” that many party stores use. This means our balloons float longer, look better, and stay picture-perfect for your entire event.
Need help choosing the right balloon sizes? Get in touch, we’re happy to help design the perfect setup for your special occasion!
