Weather Balloon 200 g


We believe in providing our customers with the highest quality products. Our 200 g balloon is no exception. Although it is more expensive than the Chinese and Indian weather balloons, its quality is far superior. This enables you to achieve higher altitudes with a smaller weather balloon, less helium, and less overall cost. This smaller balloon will reach altitudes that are typically only seen with our competitor's larger 350 g balloons.


Neck Diameter 3 cm
Burst Altitude 21 to 26 km / 70,000 to 85,000 ft


Balloon Performance

To calculate the optimal amount of helium you need for your balloon and the maximum altitude possible for a given payload mass, see our Balloon Performance Tutorial. Note: Our balloon performance calculator has not been configured with our 200 g balloon. For now, you can still make the necessary calculations if you do the following:

  1. Select the 350 g balloon size in the  calculator.
  2. Reduce the payload weight you enter into the calculator by 150 g. This is to account for the balloon weighing 150 g less than the 350 g balloon size selected.
  3. Multiply the Estimated Burst Altitude and Ascent Time by 0.8. This is because our 200 g balloon will go approximately 80% as high as our 350 g balloon. The calculated Average Ascent Rate and Required Helium does not need to be modified.


We ship same day Monday through Friday! Want to know how soon you can have your Weather Balloon delivered to your doorstep? Visit our Shipping page for more information.


In the summer of 2017 we flew a 50 g payload with our 200 g balloon to an altitude of 26 km / 85,000 ft!

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