This counts on the size (shape, too) and also weight the the balloons. A great rule of ignorance is the a liter the Helium will certainly lift around a gram – or 1000 liters of gas Helium come lift a kilogram. (This is calculated individually the helium thickness from the air density of 1.204 g/L – 0.179 g/L) = 1.025 g/L net lift.

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Estimating a not-to-small party balloon (11-inches in diameter) come hold around the same net lifting helium (Except because that the load of the balloon) together a 10-inch ball of standard press (1 atm): It will lift around 8.6 grams because the volume the a ball this size is around 8.6 liters. A 100-pack the my inexpensive commercial 11-inch party ballons weigh very close to 12 ounces i m sorry comes out to about 3.4 grams each.

So the net lift the one 11-party balloon is the helium lift minus the balloon’s weight:

8.6g-3.4g = 5.2 grams.

Let’s speak to it 5 grams also as you will probably have actually things choose string or a tape of some sort to tie or affix things to the balloon. A kilogram is 1000 grams, therefore 1000/5 = 200 balloons will certainly be compelled to elevator the kilogram.

If you usage bigger balloons the weight of the balloons and also strings which in this instance consumes practically 42% that the helium’s lift have the right to be cut down come only about 10-15% loss. Yet those would be 5 or 6 foot ballons which price up to \$15 each. Through 100-200 the those filled with helium, a full grown man, his lawn chair, and many gallons that water have the right to float up to almost 15,000 feet and also possibly the following state/country, together Kent Couch of Oregon has demonstrated. That is a 75-100 kilogram payload. Each ballon has a net lift of in between 1 kilogram and also 2 1/2 kilograms depending upon the optimal fill amount.

to background a 150 lb human ~If girlfriend were using an mean Amusement Park balloon containing roughly 14 liters the helium, you would certainly need about 4852 balloons…Thats a the majority of balloons!

How plenty of helium balloons go it take to lift a 5 stone person ~1 rock = 14lbs

5 rock = 70 pounds.

80 balloons elevator 1 lb

5600 balloons needed!

How countless Helium Balloons would It take to Lift an Average human Off The Ground…?6,000 come 7,000 ballons follow to the Mythbusters display on the exploration channel.

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Tip _ someone accually did the !!! review all about it !!True Story ~~ tradition of Lawnchair Larry no ~~Kent Couch the Oregon flew 193 miles on a lawn chair attached to helium balloons, emulating the frighten 1982 flight over mountain Pedro by the late Larry Walters. Here’s the AP story on Couch, and an old daily Breeze story ~ above Walters. His suffer was marked by mishaps, prefer dropping the pellet pistol he required to shoot balloons to descend, yet Walters got to 16,000 feet and also was spotted by airline pilots prior to landing in strength lines in long Beach. He payment a \$1,500 fine come the FAA, and also when asked why he did the quipped, “A guy can’t simply sit around.” Walters committed suicide in 1993.