Health
Pregnancy Due Date Calculator: LMP + 280 Days (40 Weeks)
Calculate your estimated due date with Naegele's Rule and track gestational week, trimester, and milestones
Online Health Calculators
Health and wellness calculators for calories, BMI, pregnancy, hydration, ideal weight, and body metrics.
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General
Health
Target Heart Rate Calculator
Calculate your target heart rate to train efficiently based on your fitness goals
Health
Body Fat Calculator - Free Navy Method Body Fat Percentage Calculator
Calculate your exact body fat percentage with our free body fat calculator using the proven U.S. Navy method. Get instant results with detailed analysis.
Health
How much water should I drink? Daily intake by weight
Calculate how much water you need to drink daily based on your weight, activity level, and climate
Health
BMI Calculator
Calculate your Body Mass Index and discover if your weight is in a healthy range
Health
Waist-to-Hip Ratio Calculator
Calculate your waist-to-hip ratio (WHR) and determine your cardiovascular risk level based on WHO guidelines.
Health
Macronutrient Calculator
Calculate your daily macros (protein, carbs and fat) based on your calories and nutritional goal.
Health
Basal Metabolic Rate Calculator - Free BMR Calculator & Resting Calories
Calculate your exact basal metabolic rate with our free basal metabolic rate calculator. Get BMR with Mifflin-St Jeor and Harris-Benedict formulas plus TDEE estimates.
Health
Ovulation and Fertile Days Calculator
Calculate your ovulation date, fertile window, and the best time to conceive