Health Calculators

Compute your Body Mass Index (BMI) and health category based on height and weight.

Estimate daily calorie intake (TDEE & BMR) for weight loss or muscle gain.

Calculate ideal body weight target based on height, gender, and frame size.

Calculate daily fluid hydration needs based on weight and exercise.

Calculate Total Daily Energy Expenditure.

Estimate baby due date based on last menstrual period or conception.

Calculate target cardio training zones (Fat Burn, Aerobic, Peak).

Predict fertile window and next menstrual period dates.

Estimate basal metabolic rate with the Mifflin-St Jeor equation.

Estimate lean body mass from height, weight, and sex.

Calculate waist-to-hip ratio from body measurements.

Calculate waist-to-height ratio from circumference and height.

Estimate BAC using weight, drinks, alcohol percentage, and elapsed time.

Estimate daily protein target from weight and fitness goal.

Find ideal bedtimes based on 90-minute sleep cycles.

Estimate pregnancy due date from conception date.

Estimate growth percentile from measurement, median, and standard deviation.

Calculate weekly, monthly, annual, and lifetime smoking costs.

Estimate caffeine intake and remaining caffeine after several hours.

Calculate total-to-HDL, LDL-to-HDL, and triglyceride ratios.

Estimate Body Surface Area values for health, wellness, and lifestyle planning.

Estimate Blood Pressure Category values for health, wellness, and lifestyle planning.

Estimate A1C to average glucose values for health, wellness, and lifestyle planning.

Estimate Insulin Dose values for health, wellness, and lifestyle planning.

Estimate Creatinine Clearance values for health, wellness, and lifestyle planning.

Estimate eGFR values for health, wellness, and lifestyle planning.

Estimate Medication Dosage values for health, wellness, and lifestyle planning.

Estimate Child BMI values for health, wellness, and lifestyle planning.

Estimate Pregnancy Weight Gain values for health, wellness, and lifestyle planning.

Estimate Breastfeeding Calorie values for health, wellness, and lifestyle planning.

Estimate Alcohol Units values for health, wellness, and lifestyle planning.

Estimate Sobriety values for health, wellness, and lifestyle planning.