Wellness
Blood pressure, sleep, pregnancy, menstrual cycle and heart rate calculators.
Age Calculator
Your exact age in years, months & days — plus a birthday countdown.
Ovulation Calculator
Estimate your fertile window, ovulation date, next period & due date.
Blood Pressure Checker
Classify your BP reading using American Heart Association categories.
Heart Rate Zones
Five training zones via Karvonen or % of max HR.
1RM Calculator
Estimate your one-rep max using 7 formulas + training percentages.
Running Pace Calculator
Pace per km/mile and speed from distance and finish time.
Sleep Calculator
Bedtimes or wake-up times aligned with 90-minute sleep cycles.
Sleep Cycle Calculator
Live wake-up windows from your current bedtime.
Pregnancy Due Date Calculator
Estimated due date via Naegele's rule or IVF/ultrasound.
Pregnancy Weight Gain Calculator
IOM-recommended weight gain by BMI category and gestational age.
Menstrual Cycle Calculator
Next 6 periods, ovulation dates and fertile windows.
Workout Plan Generator
Personalized plan by goal, level and weekly frequency.
Age in Days Calculator
Your exact age in days, weeks, months and hours.
Age Difference Calculator
Exact gap in years, months, days and total days.
Hydration Status Checker
Match urine color to a 6-shade hydration chart.
HRV Calculator
RMSSD, SDNN and pNN50 from RR intervals.
Wellness and Health Trackers
Wellness calculators track various health indicators from blood pressure to sleep quality. They help you monitor vital signs and understand health metrics in context.
These tools provide educational information, not medical diagnosis. Use them to track trends and discuss patterns with your healthcare provider.
All data stays in your browser. No health information is transmitted or stored on external servers.
