Health
BMI Calculator
Professional BMI calculations with WHO ranges, contextual insights, metric/imperial toggles, and downloadable PDF summaries.
Fitness & Health
All wellness calculators in one tab
Browse every metabolic, pregnancy, and performance tool. Each calculator opens inside its own workspace with PDF-ready exports.
Metabolism
BMR Calculator
Estimate basal metabolic rate and daily calories based on age, gender, weight, height, and activity.
Composition
Body Fat Calculator
US Navy method body fat estimation using neck, waist, hip, and height measurements.
Fitness
Pace Calculator
Calculate running, walking, and biking pace. Multipoint tracking, pace conversion, finish time estimation, and heart rate zones.
Health
Pregnancy Calculator
Estimate pregnancy schedule, due date, and timeline based on due date, last period, conception, ultrasound, or IVF transfer.
Health
Pregnancy Conception Calculator
Estimate conception date based on due date, last period, or ultrasound. Includes conception date range with sperm viability.
Health
Due Date Calculator
Estimate delivery date based on last menstrual period, ultrasound, conception date, or IVF transfer. Includes term classifications.
Health
Pregnancy Weight Gain Calculator
Estimate healthy weight gain schedule based on Institute of Medicine guidelines for your pre-pregnancy BMI.
Fitness
Target Heart Rate Calculator
Generate custom cardio zones using age formulas, field-test data, and resting heart rate reserve calculations.
Style
Body Type Calculator
Classify body shape, compute waist-hip ratio, and export styling cues using bust, waist, hip, and high-hip measurements.
Safety
BAC Calculator
Estimate blood alcohol concentration using the Widmark formula, visualize elimination curve, and download impairment summaries.
Health
GFR Calculator
Estimate glomerular filtration rate with MDRD, CKD-EPI, and Mayo equations, stage CKD, and export nephrology-ready reports.
Metabolism
TDEE Calculator
Compute total daily energy expenditure, calorie targets for cutting/bulking, and macro guidance using multiple BMR formulas.
Nutrition
Carbohydrate Calculator
Convert calorie targets into carb grams per WHO/IOM guidance. Includes weight-loss, maintenance, and gain tables with PDF exports.
Readiness
Army Body Fat Calculator
Determine compliance with U.S. Army body composition standards using official circumference equations and readiness guidance.
Awareness
Anorexic BMI Calculator
Screen BMI against anorexia thresholds, read severity guidance, and step through support resources and disclaimers.
Nutrition
Protein Calculator
Turn body weight and training style into protein grams per day with RDA, ADA/CDC guidance, pregnancy tables, and food examples.
Nutrition
Macro Calculator
Create balanced, low-carb, or high-protein macro plans based on your calories, plus food tables and PDF exports.
Family
Conception Calculator
Estimate fertile windows, ovulation days, and due-date projections with probability tables and planning tips.
Cycle
Period Calculator
Mirror and improve calculator.net with calendar grids, fertile windows, ovulation highlights, and PDF exports.
Need another calculator? Contact us with the requirements and we'll add it beside this hub.