BMI, calorie, age and fitness calculators
Predict your child’s adult height using the Mid-Parental Height formula and growth tables. Covers boys and girls, average height by age, and tips to maximize height potential.
Learn how to calculate your daily calorie deficit for weight loss using the TDEE formula. Includes a full calorie deficit table, safe deficit ranges, and practical tips.
Running Pace Calculator – Find Your Pace, Speed & Race Time Whether you are training for a 5K, 10K, half marathon, or full marathon, our running pace calculator helps you find your pace per mile, pace per km, and estimated finish time. Running Pace Calculator Fill in any 2 fields — we calculate the third … Read more
Water Intake Calculator – How Much Water Should You Drink Per Day? Staying hydrated is one of the simplest ways to improve your health. But how much water do YOU need? Our water intake calculator gives you a personalized daily water goal based on your weight, activity level, and climate. Water Intake Calculator Body Weight … Read more
Protein Intake Calculator – How Much Protein Do You Need Per Day? Our protein intake calculator gives you a personalized daily protein target based on your body weight, activity level, and goal. Protein Intake Calculator Body Weight UnitKilograms (kg)Pounds (lbs) Activity LevelSedentaryLightly Active (1–3 days/week)Moderately ActiveVery ActiveAthlete / Heavy Training GoalWeight LossGeneral HealthBuild MuscleEndurance Calculate … Read more
Macro Calculator – Daily Protein, Carbs & Fat for Your Goal Our macro calculator gives you a personalized macronutrient breakdown based on your body stats and fitness goal — whether you want to lose fat, build muscle, or maintain your weight. Macro Calculator Age GenderMaleFemale Height (cm) Weight (kg) Activity LevelSedentaryLightly Active (1–3 days/week)Moderately Active … Read more
Sleep Cycle Calculator – Best Time to Wake Up or Go to Sleep Waking up in the middle of a sleep cycle leaves you groggy all day. Our sleep cycle calculator uses 90-minute sleep cycles to tell you exactly when to wake up — or when to go to bed — so you feel fully … Read more
Do you feel tired even after sleeping? You might have sleep debt. Our free sleep debt calculator tells you exactly how many hours of sleep you owe your body — and how long it will take to recover. This complete guide explains everything about calculating and recovering from sleep debt in 2026. Sleep Debt Formula: … Read more
Calculate your exact age in years, months, and days with our free Age Calculator. Find out how many days old you are and calculate age between any two dates.
Find out exactly how many calories you need per day with our free Calorie Calculator. Based on age, weight, height, and activity level using the Mifflin-St Jeor equation.
