Pregnancy Weight Gain Calculator
Use our pregnancy weight gain calculator to determine your recommended weight gain based on IOM guidelines. Get personalized results by week and BMI category for a healthy pregnancy.
Fitness & Health Calculators
Pregnancy Calculator
Use our pregnancy calculator to estimate your due date, conception date, and key pregnancy milestones based on last period, ultrasound, conception, or IVF transfer dates.
Army Body Fat Calculator
Use our Army Body Fat Calculator to determine if you meet US Army body composition standards. Based on official 2023 Army regulations and tape test methodology.
Pace Calculator
Free online running pace calculator that helps athletes calculate pace, time, and distance. Essential tool for marathon training and race preparation.
Ideal Weight Calculator
Use our free Ideal Weight Calculator to determine your healthy weight range based on height, age, gender and multiple scientific formulas including Hamwi and Devine.
Macro Calculator
Free macro calculator to determine your ideal daily intake of protein, carbohydrates and fats based on your goals, activity level and body metrics.
BMR Calculator
Free BMR and TDEE calculator to determine your basal metabolic rate and total daily energy expenditure. Calculate calorie needs for weight management and understand your metabolism.
Body Fat Calculator
Use our free body fat calculator to estimate your body fat percentage using the U.S. Navy method and BMI formula. Get detailed results including fat mass, lean mass, and ideal ranges.
Calorie Calculator
Free calorie calculator that estimates your daily calorie needs using scientifically validated formulas. Perfect for weight management, diet planning, and fitness goals.
BMI Calculator
Calculate your Body Mass Index with our free BMI calculator. Supports both metric and US units for adults and children with detailed results and health recommendations.