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T01Heart
Blood Pressure Checker
Enter a reading to see its category (normal to hypertensive crisis) using the ACC/AHA adult guideline. Open tool -
T02Glucose
Blood Sugar & HbA1c Converter
Convert glucose between mg/dL and mmol/L, and HbA1c to estimated average glucose. Open tool -
T03Fitness
Heart Rate Zone Calculator
Your maximum heart rate and five training zones, with the optional Karvonen (resting heart rate) method. Open tool
Why these tools are free
Vasopressin is supported by advertising and clearly labeled affiliate links. The tools run entirely in your browser, so we never see what you enter — not even the numbers you enter.