BMI Calculator
Calculate your Body Mass Index (BMI) to see if you're underweight, normal, overweight, or obese.
FitnessUse Tool
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Free online health calculators and wellness tools. Track fitness, plan nutrition, and monitor your health—fast, secure, and no registration required.
⚡28 Tools
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All Health Tools (28)
Calorie Calculator
Estimate your daily calorie needs for weight loss, maintenance, or muscle gain.
FitnessUse Tool
Body Fat Calculator
Determine your body fat percentage using multiple measurement methods.
FitnessUse Tool
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) to know how many calories you burn at rest.
FitnessUse Tool
Ideal Weight Calculator
Find your ideal weight range based on height, gender, and body frame.
FitnessUse Tool
Pace Calculator
Calculate your running or walking pace based on time and distance.
FitnessUse Tool
Army Body Fat Calculator
Calculate your body fat percentage according to U.S. Army standards.
FitnessUse Tool
Lean Body Mass Calculator
Find your lean body mass (LBM) and understand your body composition.
FitnessUse Tool
Healthy Weight Calculator
Check your healthy weight range based on height and other health factors.
FitnessUse Tool
Calories Burned Calculator
Estimate how many calories you burn for various activities and exercises.
FitnessUse Tool
One Rep Max Calculator
Calculate your one-repetition maximum (1RM) for strength training.
FitnessUse Tool
Target Heart Rate Calculator
Find your optimal target heart rate zones for effective workouts.
FitnessUse Tool
Pregnancy Calculator
Track your pregnancy progress and key milestones easily.
PregnancyUse Tool
Pregnancy Weight Gain Calculator
Estimate healthy weight gain during pregnancy by trimester.
PregnancyUse Tool
Pregnancy Conception Calculator
Calculate the probable conception date based on your last period.
PregnancyUse Tool
Due Date Calculator
Estimate your expected due date based on the first day of your last period.
PregnancyUse Tool
Ovulation Calculator
Predict your fertile window and most likely ovulation days.
PregnancyUse Tool
Conception Calculator
Estimate the likely conception date based on menstrual cycle data.
PregnancyUse Tool
Period Calculator
Track your menstrual cycles and predict your next period.
PregnancyUse Tool
Macro Calculator
Calculate your daily macronutrient needs for carbs, protein, and fat.
OtherUse Tool
Carbohydrate Calculator
Determine your daily carb intake for fitness or weight goals.
OtherUse Tool
Protein Calculator
Calculate your daily protein needs for muscle growth or weight loss.
OtherUse Tool
Fat Intake Calculator
Determine how much fat you should consume daily for health and fitness.
OtherUse Tool
TDEE Calculator
Calculate your Total Daily Energy Expenditure for accurate calorie planning.
OtherUse Tool
GFR Calculator
Estimate your Glomerular Filtration Rate (GFR) to check kidney function.
OtherUse Tool
Body Type Calculator
Identify your body type (ectomorph, mesomorph, or endomorph).
OtherUse Tool
Body Surface Area Calculator
Calculate your body surface area (BSA) for medical and health purposes.
OtherUse Tool
BAC Calculator
Estimate your Blood Alcohol Concentration (BAC) based on drinks consumed.
OtherUse Tool
Why Choose Our Health Tools?
People everywhere trust us for quick, awesome results—no hassle. Check out our favorite tools and see how easy it can be!
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Fitness Tracking
Track your workouts, activities, and progress toward your fitness goals.
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Nutrition & Diet
Plan meals, calculate calories, and monitor your daily nutrient intake.
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Wellness Monitoring
Monitor BMI, heart rate, and general wellness for a healthier lifestyle.