Helium Balloons Calculator

Calculate helium balloon lift capacity, buoyancy force, and balloon requirements for any occasion. Perfect for party planning, physics education, and understanding balloon science with instant, accurate results.

  • Free Online Calculator
  • Instant Results
  • Physics Accurate
  • Mobile Friendly

Enter balloon specifications and payload weight

Tip: Use the scroll wheel or arrow keys for rapid adjustments.

Enter the diameter of your inflated balloon in inches.
Select the type of balloon material.
Enter the weight of any attachments or payload in grams.
Enter the ambient temperature in Celsius.

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Note: Anyone with this link will see your calculator with the same values you entered.
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