How many mylar balloons can a 135 lb helium tank fill?

Answer 1

When filled, party balloons generally have a diameter of 10 to 12 inches. The volume of each size is as follows:

10 inch balloon = 523 cubic inches (rounded to the nearest whole number)
12 inch balloon = 904 cubic inches (rounded to the nearest whole number) 523 cubic inches = 0.30 cubic feet (rounded to the nearest hundredth)
904 cubic inches = 0.52 cubic feet (rounded to the nearest hundredth) Therefore, a 9 cubic foot tank would fill between 17 and 30 balloons of this size.

Answer 2

A 135 lb helium tank can fill approximately 100-150 standard 18-inch mylar balloons, depending on the size of the balloons and the amount of helium needed to inflate each one. It's always best to check with the manufacturer or vendor for specific guidelines.

Answer 3

I am not sure which tank size would weigh 135lbs, but a k tank should weigh around that much. A k tank holds 194 cf of helium and will fill about 440 18" mylar balloons or about 48 36" balloons.

Answer 4

By using Boyle's law, you have a total of 1920 L of helium gas at 1atm. If you have 12L of Helium already all you do is subtract 12L from 1920, which gives you 1908L of Helium, and divide 3L from 1908, which gives you 636 balloons. Hope this helps!