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Stability
Criteria
Calculator
Check vessel stability against USCG/IMO intact stability criteria
Input Parameters
GM (Metacentric Height) (ft)
GZ at 30° (ft)
GZ at 40° (ft)
Angle of Max GZ (degrees)
Vanishing Angle (degrees)
Calculate
Results
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GM Check
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GZ at 30° Check
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Area Ratio Check
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Overall Status
Reference
IMO Intact Stability Criteria: GM >= 0.15m (0.5 ft) minimum GZ at 30° >= 0.2m (0.66 ft) Max GZ angle >= 25° Vanishing angle >= 60° Area under GZ curve 0-30° >= 0.055 m-rad