BMI, calorie, fitness, and wellness calculators
12 calculators available
Calculate your Body Mass Index (BMI) using metric or imperial units. Understand your weight category and health implications.
Calculate your Basal Metabolic Rate (BMR) and daily calorie needs based on activity level using the Mifflin-St Jeor equation.
Calculate daily calorie needs for weight loss, maintenance, or muscle gain based on your goals and activity level.
Estimate body fat percentage using the US Navy method with waist, neck, and hip measurements. More accurate than BMI for body composition.
Calculate your Total Daily Energy Expenditure (TDEE) and personalized macronutrient targets (protein, carbs, fat) for your fitness goal.
Calculate your ovulation date, fertile window, and next period based on your last menstrual period and cycle length.
Calculate your recommended daily water intake based on weight, activity level, and climate. Stay properly hydrated for optimal health.
Calculate your ideal body weight using four evidence-based formulas (Devine, Robinson, Miller, Hamwi). Supports metric and imperial units with healthy weight range.
Calculate your estimated due date, weeks pregnant, trimester, and conception date based on your last menstrual period (LMP) and cycle length.
Calculate recommended pregnancy weight gain based on your pre-pregnancy BMI, following IOM guidelines. Track actual vs. expected weight gain by week.
Calculate your daily protein needs based on body weight, activity level, and fitness goal. Get per-meal targets and top food sources.
Calculate calories burned during exercise using MET values. Covers 18 activities with light, moderate, and vigorous intensity options.
Health calculators provide evidence-based tools for understanding your body and making informed wellness decisions. From BMI and BMR to calorie targets, body composition, fertility tracking, and daily hydration, these calculators use established medical formulas to give you personalized health insights.