Health Metrics

Quick health readouts: A1c to average glucose, blood pressure category, cholesterol ratio, BAC, pack-years, and sleep timing.

7 free health metrics tools, no signup.

• A1c to Average Glucose CalculatorConvert HbA1c to estimated average glucose (eAG) in mg/dL and mmol/L. Free and private.
• Blood Alcohol (BAC) CalculatorEstimate blood alcohol concentration with the Widmark formula from your weight, sex, drinks, and time. For education only, not a measure of fitness to drive.
• Blood Pressure Category CalculatorEnter a systolic and diastolic reading to see its American Heart Association category, from normal to hypertensive crisis.
• Cholesterol Ratio CalculatorCalculate your total-to-HDL, LDL-to-HDL, and triglyceride-to-HDL cholesterol ratios from a lipid panel. Shows how your HDL compares with your other numbers.
• Pack Year CalculatorCalculate smoking pack-years from cigarettes per day and years smoked. Free and private.
• Sleep CalculatorFind the best bedtime or wake-up time based on 90-minute sleep cycles so you wake up feeling rested. Free.
• Sleep Cycle CalculatorFind the best times to go to sleep or wake up based on 90-minute sleep cycles. Enter a wake time for bedtimes, or a bedtime for wake times.