A client-side tool to analyze your cholesterol levels and understand your cardiovascular risk. This calculator takes your Total Cholesterol, HDL, and LDL levels to compute two critical ratios: Total Cholesterol to HDL, and LDL to HDL. It provides instant, color-coded feedback on your risk levels (Optimal, Good, Borderline, High Risk) based on established medical guidelines. The tool features interactive radial charts for a clear visual representation of your results and allows you to switch between mg/dL and mmol/L units. All your data is saved locally in your browser for privacy and convenience.