How much helium do I need for my event?
Latex Balloon Helium Usage Chart
|Size of Balloon
||Cubic Feet of Helium Needed
||Average Floating Time|
|9″||.25 cubic feet||12-16 hours|
|11″||.50 cubic feet||16-24 hours|
|16″||1.3 cubic feet||30+ hours|
For Example- If you need to inflate 140- 11″ latex balloons. Each 11″ latex balloons needs .50 cubic feet. 140 balloons x .50 cubic feet = A total of 70 cubic feet is needed for your event.