CCalcBOX
🌐JA

Health & Body Tools

BMI, sleep, calories, and more health calculators

🏥
Health DashboardBMI, body fat %, BMR, and TDEE in one place
😴
Sleep CalculatorOptimal bedtime and wake time suggestions
🍺
Alcohol ClearanceHow long until alcohol is out of your system
🎂
Age CalculatorYour exact age in years, months, and days

Frequently Asked Questions

Q.What is a healthy BMI?
A. BMI (Body Mass Index) = weight(kg) ÷ height(m)². Under 18.5 is underweight, 18.5–25 is normal weight, 25–30 is overweight, and 30+ is obese. BMI 22 is statistically associated with the lowest health risk.
Q.How much sleep do I need?
A. Adults need 7–9 hours of sleep per night. Aligning wake times with 90-minute sleep cycles helps you feel more rested. Use the sleep calculator to find your ideal bedtime.