CAPE and CIN Calculator
Calculate Convective Available Potential Energy (CAPE) and Convective Inhibition (CIN) from parcel and environmental temperatures at multiple pressure levels.
Inputs
Results
CAPE
594 J/kg
CIN
0 J/kg
How to Use This Calculator
- Enter temperature (°C) for the air parcel and environment at each pressure level: surface, 850 mb, 700 mb, and 500 mb.
- Set LFC Pressure (mb) — the Level of Free Convection where the parcel becomes buoyant.
- Set EL Pressure (mb) — the Equilibrium Level where the parcel returns to neutral buoyancy.
- Review CAPE (J/kg): below 1000 = weak instability, 1000–2500 = moderate, 2500–3500 = large, 3500+ = extreme.
- Check CIN (J/kg) — values above 200 indicate a strong cap that may suppress storms even with high CAPE.
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