Calculating the No of Balloons in a Garland by: Anonymous
The first thing you have to do is calculate the length of the Arch.
eg; 2 x H + W
once you know the length the rest is basically easy thanks to the pioneering brain power of Bruce Walden.
Calculating The Number of Balloons In A Garland
If the length of the garland and the diameter of balloons are in the same units (both in ft, in, m, cm, mm ) divide the diameter of the balloon into the length of the garland and multiple by 4.8 to get the number of balloons needed for a 4-pack "spiral" garland.
Length of garland (unit)
-------------------------------- x 4.8 = # of balloons
Diameter of balloon (same unit)
Example Using a 4 x Balloon Cluster Garland: [A 304.8 cm long garland (10 ft) made from 25.4 cm balloons (10in)]
Therefore 304.8 divided by 25.4 = 12 x 4.8 = 57.6 balloons
57.6 balloons when divided by 4 to calculate the number of Clusters = 14.4 Clusters
Because you can not use .4 of a balloon you will have to decide if you want to use 14 or 15 Clusters of 4 balloons each inflated to 25.4 cm (10inches).
Exact final result can slightly vary according to tightness of packing of each individual Cluster.
Maths formula for calculating the number of balloons in a Garland using metric measurements kindly provided by Bruce Walden (Toronto, Canada)
Sean O'Kelly
Balloon Decor.com.au Australia
Rating
Calculate by: Anonymous
If you are using 11" balloons with 4 in a cluster.... multiply feet x 6
