Weather Balloon Calculator

Estimate burst altitude, ascent rate, and drift distance for high-altitude balloon flights.

Balloon Size

Lift Gas

Payload Weight (grams)

Avg Wind Speed (mph)

Neck Lift (grams, free lift above neutral)

Estimated Burst Altitude

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Ascent Rate

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Flight Time

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Drift Distance

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Burst Diameter

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Launch Volume

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Solar irradiance.