Free Online Health Tools – Track, calculate, and monitor your health easily.

Simple calculators and trackers for BMI, calories, heart rate, and more.

100% FREE easy to use. No Sign up, No Download

Quick, browser-based, and accessible anytime, anywhere.

Health Hero

Health & Fitness

Calorie Check

Estimate daily calories for your activity and goals.

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Body Fat

Measure approximate body fat percentage.

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BMI

Calculate Body Mass Index to check weight category.

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BMR

Find Basal Metabolic Rate (calories burned at rest).

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Ideal Weight

Suggest a healthy weight range based on height.

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Sleep Calculator 

Plan optimal sleep cycles and wake-up times.

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Lean Body Mass

Estimate lean muscle mass vs. body fat.

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Healthy Weight

Check if your weight falls in a healthy range.

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Calories Burned

Estimate calories burned from activities or exercise.

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One Rep Max

Find your maximum weightlifting capacity.

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Healthy Lung Test

Check your lung health how much good it is.

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Waist To Hip Ratio

Measure your waist-to-hip ratio to assess body fat.

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Daily Water Intake

Water you should drink each day to stay hydrated.

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Blood Pressure

Check your blood pressure is in a healthy range for your age.

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Blood Sugar

Track your blood sugar levels and see if they fall within a healthy range.

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Cholesterol Ratio

Calculate your cholesterol ratio to understand your heart health.

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Body Shape

Determine your body shape and related health insights easily.

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Protein Intake

Calculate your daily protein needs for a healthy diet and fitness.

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Army Body Fat

Measure body fat percentage using U.S. Army formula.

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Target Heart Rate Zone

Calculate ideal heart rate zones for training.

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Dab Rig Compatibility

Check if dab rig parts and accessories fit together.

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Health and Fitness Calculator Tools – Track Your Body & Wellness

Our free Health and Fitness Calculators help you monitor your body metrics, track workouts, and plan a healthier lifestyle. Whether you want to calculate BMI, calories, body fat, or fitness targets, these tools provide accurate results to keep you on track.

Available Tools

  • BMI Calculator – Determine your Body Mass Index quickly and easily.
  • Calorie Calculator – Estimate daily calorie needs for weight management.
  • Body Fat Calculator – Measure body fat percentage accurately.
  • BMR Calculator – Calculate Basal Metabolic Rate for energy needs.
  • Ideal Weight Calculator – Find your optimal weight based on health standards.
  • Pace Calculator – Determine running pace for workouts or races.
  • Sleep Calculator – Plan your sleep schedule for better rest.
  • Army Body Fat Calculator – Measure body fat according to military standards.
  • Lean Body Mass Calculator – Calculate your lean body mass for fitness tracking.
  • Healthy Weight Calculator – Assess a healthy weight range for your body.
  • Calories Burned Calculator – Track calories burned during activities.
  • One Rep Max Calculator – Find your maximum lifting capacity safely.
  • Target Heart Rate Zone Calculator – Identify optimal heart rate for workouts.
  • Dab Rig Compatibility Checker – Check the right dab rig setup for your device.
  • Healthy Lung Test – Assess lung health and capacity easily.

Why Use Our Health & Fitness Calculators?

Tracking health metrics and workout performance is essential for a healthy lifestyle. Our tools make it easy to calculate body measurements, nutrition needs, exercise performance, and overall wellness—all free and online.

Start monitoring your health today with CalculatorKits.com Health and Fitness Calculators.

Pregnancy

Pregnancy Check

Estimate pregnancy stage and key milestones.

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Weight Gain

Track healthy weight gain during pregnancy.

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Conception

Estimate the date of Pregnancy conception.

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Due Date

Predict your baby’s estimated delivery date.

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Ovulation

Find your most fertile days in a cycle.

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Fertile Window

Identify your best days for conception.

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Period Calculator 

Track and predict upcoming menstrual.

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Pregnancy Weeks

See your pregnancy progress week by week.

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Fetal Growth

Monitor your baby’s expected size and growth.

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Contraction Timer 

Track your contraction frequency and duration.

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Caloric Intake

Plan your daily nutrition needs for pregnancy.

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Kick Counter

Track your baby’s movement patterns.

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Protein & Vitamin

Check daily nutritional requirements.

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Iron & Calcium Intake

Track daily iron and calcium intake to meet nutrition needs

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Pregnancy Calculator Tools – Track Your Pregnancy & Health

Our free Pregnancy Calculators help expecting mothers monitor pregnancy progress, track important dates, and manage health during pregnancy. From conception to delivery, these tools provide accurate calculations to support a healthy pregnancy journey.

Available Tools

  • Pregnancy Calculator – Estimate your pregnancy timeline easily.
  • Pregnancy Weight Gain Calculator – Track safe weight gain during pregnancy.
  • Pregnancy Conception Calculator – Determine conception dates based on cycles.
  • Due Date Calculator – Predict your baby’s expected arrival date.
  • Ovulation Calculator – Find your ovulation days for conception planning.
  • Fertile Window Calculator – Identify the most fertile days in your cycle.
  • Period Calculator – Track menstrual cycles and predict future periods.
  • Pregnancy Week-by-Week Calculator – Monitor fetal development weekly.
  • Fetal Growth Calculator – Track your baby’s growth and development.
  • Contraction Timer – Time contractions for labor preparation.
  • Pregnancy Caloric Intake Calculator – Estimate daily nutrition needs.
  • Kick Counter Calculator – Track fetal movements to monitor health.
  • Iron & Calcium Intake Calculator – Ensure sufficient intake for mother and baby.
  • Protein & Vitamin Calculator – Monitor essential nutrients for a healthy pregnancy.

Why Use Our Pregnancy Calculators?

Monitoring pregnancy progress and maternal health is vital for a safe and healthy journey. Our calculators make tracking conception, due dates, fetal growth, and nutrition easy, accurate, and accessible online.

Start tracking your pregnancy today with CalculatorKits.com Pregnancy Calculators.

Post-Pregnancy

Breastfeeding Calorie

Estimate extra calories needed while breastfeeding.

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Postpartum Recovery

Monitor your recovery after childbirth with our free Calculator.

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Baby Feeding & Growth

Track your baby’s feeding schedule and growth with our free Calculator.

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Post-Pregnancy Calculator Tools – Track Recovery & Baby Growth

Our free Post-Pregnancy Calculators help new mothers monitor recovery, nutrition, and their baby’s development. These tools provide easy and accurate calculations to support health and wellness after childbirth.

Available Tools

  • Breastfeeding Calorie Calculator – Estimate daily calorie needs while breastfeeding.
  • Postpartum Recovery Calculator – Track recovery milestones after childbirth.
  • Baby Feeding & Growth Calculator – Monitor your baby’s feeding schedule and growth progress.

Why Use Our Post-Pregnancy Calculators?

Postpartum health and baby development are essential for new mothers. Our calculators make it simple to track calories, recovery, and infant growth, all online, free, and accurate.

Start monitoring post-pregnancy health today with CalculatorKits.com Post-Pregnancy Calculators.

Other Health Tool

Macro

Plan daily intake of carbs, protein, and fats.

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Carbohydrate

Find recommended daily carb intake for you.

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Protein

Estimate protein needs in your body, based on goals.

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Fat Intake

Calculate daily healthy fat intake to your body.

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TDEE

Estimate total daily energy expenditure of your body.

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GFR

Assess kidney function using glomerular filtration rate.

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Body Surface Area

Measure body surface area for medical use.

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BAC

Estimate blood alcohol concentration.

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Anorexic BMI

Check BMI levels indicating anorexia risk.

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Overweight  

Determine if weight falls in the overweight range.

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Bra Size  

Find your accurate bra size from measurements.

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Other Health & Nutrition Calculators – Track Diet, Body & Wellness

Our free Health & Nutrition Calculators help you monitor body metrics, nutrition intake, and overall wellness. From macros and body type to alcohol limits and BMI, these tools provide accurate results for a healthier lifestyle.

Available Tools

  • Macro Calculator – Track macronutrient intake for diet and fitness.
  • Carbohydrate Calculator – Calculate daily carbohydrate needs.
  • Protein Calculator – Determine optimal protein intake for health and fitness.
  • Fat Intake Calculator – Monitor daily fat consumption.
  • TDEE Calculator – Calculate Total Daily Energy Expenditure for calories burned.
  • GFR Calculator – Assess kidney function with Glomerular Filtration Rate.
  • Body Type Calculator – Identify your body type for fitness planning.
  • Body Surface Area Calculator – Calculate BSA for medical or fitness purposes.
  • BAC Calculator – Estimate Blood Alcohol Content based on intake.
  • Anorexic BMI Calculator – Assess BMI in underweight or anorexic ranges.
  • Weight Watcher Points Calculator – Track Weight Watcher points for meals.
  • Barrett Toric Calculator – Specialized calculation for eye care.
  • Overweight Calculator – Determine overweight status based on BMI and body metrics.
  • Bra Size Calculator – Calculate accurate bra size for comfort and fit.

Why Use Our Health & Nutrition Calculators?

Tracking nutrition, body metrics, and wellness is essential for a healthy lifestyle. Our calculators provide fast, accurate, and online tools to make health management easier and more effective.

Start monitoring your diet, body, and wellness today with CalculatorKits.com Health & Nutrition Calculators.