- Body Composition Calculator
- Metabolism Calculator
- Nutrition Calculator
- Heart Health Calculator
- Pregnancy Calculator
- Fitness Calculator
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Cardiac Index CalculatorCalculate cardiac index (CI) from cardiac output and body surface area. Enter CO in L/min and BSA in m² to get L/min/m² instantly.
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VLDL Cholesterol CalculatorEstimate VLDL cholesterol from your triglyceride level using the standard VLDL = Triglycerides / 5 formula. Fast, free, in mg/dL.
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LDL Cholesterol CalculatorEstimate LDL cholesterol from total cholesterol, HDL, and triglycerides using the Friedewald equation in mg/dL or mmol/L.
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Cholesterol Ratio CalculatorCalculate your total cholesterol to HDL ratio (TC/HDL) and HDL percentage. Enter total and HDL cholesterol to assess heart health risk.
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Estimated Average Glucose (eAG) CalculatorConvert your HbA1c (%) into estimated average glucose (eAG) in mg/dL and mmol/L using the ADAG study formula. Fast, free and accurate.
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Stroke Volume CalculatorCalculate stroke volume (mL/beat) from cardiac output and heart rate, or from end-diastolic and end-systolic volumes. Free, instant SV calculator.
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Karvonen Formula Target Heart Rate CalculatorCalculate your target heart rate training zone with the Karvonen formula using your age, resting heart rate, and desired exercise intensity range.
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A-a Gradient CalculatorCalculate the alveolar-arterial (A-a) oxygen gradient from FiO2, PaCO2 and PaO2, plus the age-expected normal value, with this clinical calculator.
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Maximum Heart Rate (MHR) CalculatorEstimate your maximum heart rate from age using the Fox (220−age) or Tanaka (208−0.7×age) formula, plus 50/70/85% training zones in bpm.
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Heart Rate Training Zones CalculatorCalculate your max heart rate and the 5 training zones (50–90%) from your age using the 220−age formula. Free, instant heart rate zone calculator.
