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Balloon Arch Calculator

Estimate how many balloons, how much arch strip and how many glue dots you need for a garland or arch.

How it estimates

An organic-style garland uses roughly 10 balloons per foot for an airy look, about 14 for a standard full garland and around 18 for a dense photo backdrop. These are rules of thumb: inflation size changes everything, so a garland of slightly under-inflated 12 in balloons needs more of them.

Balloon size Share of total Job
18 in About 10% Anchors and focal points
12 in About 55% The body of the garland
5 in About 35% Fill gaps, added last with glue dots

Arch strip length is the garland length plus 10% for the ends and hanging loops. Step-by-step setup is in the balloon arch strip guide, and a ready kit is in the 50 ft balloon arch strip with glue dots.