Health Calculators
BMI, calories, body fat, sleep, pregnancy and more. For information only — not medical advice.
Only searching Health · 26 calculators
Dietary
7Calorie Calculator
Daily calories to maintain, lose or gain weight.
Dietary Calculate
Protein Calculator
How much protein you need each day.
Dietary Calculate
Reverse Diet Calculator
Plan a gradual calorie increase after dieting.
Dietary Calculate
Water Fasting Weight Loss Calculator
Estimate weight change during a water fast.
Dietary CalculateTDEE Calculator
Total daily energy expenditure from your activity level.
Dietary Calculate
Keto Calculator
Keto macros: fat, protein and net carbs.
Dietary Calculate
DRI Calculator
Dietary reference intakes for vitamins and minerals.
Dietary CalculateBody Measurements
6
Ideal Body Weight Calculator
Ideal weight range for your height.
Body Measurements Calculate
Lean Body Mass Calculator
Estimate your lean body mass.
Body Measurements Calculate
ABSI Calculator
A Body Shape Index from waist, height and weight.
Body Measurements CalculateBody Fat Calculator
Body fat percentage from body measurements.
Body Measurements Calculate
Body Shape Calculator
Find your body shape from measurements.
Body Measurements Calculate
Face Shape Calculator
Find your face shape from a few measurements.
Body Measurements CalculateBMI
4BMI Calculator
Body mass index and healthy weight range.
BMI Calculate
BMI Calculator For Women
BMI with guidance tailored for women.
BMI Calculate
BMR Calculator
Basal metabolic rate — calories burned at rest.
BMI Calculate
Weight Loss Calculator
Daily calories and time to reach a goal weight.
BMI CalculateDiabetes
1
Addiction Medicine
1
Sleep
2
Electrolytes & Fluids
1
Gynecology & Pregnancy
3
Army
1
Frequently Asked Questions
Health calculators are online tools that help you measure, track, and understand important health metrics such as body weight, calories, heart rate, and overall wellness. They provide quick insights to support healthier lifestyle decisions.
This section includes a variety of tools such as:
- BMI (Body Mass Index) Calculator
- Ideal Body Weight Calculator
- Calorie Calculator
- BMR / TDEE Calculator
- Body Fat Calculator
These tools help you monitor fitness, nutrition, and overall health
A BMI calculator estimates your body fat based on your height and weight, helping you determine whether you are underweight, normal, overweight, or obese.
Yes, tools like calorie calculators and BMR/TDEE calculators help you understand how many calories you need daily, making it easier to plan weight loss, maintenance, or weight gain.
Health calculators use standard formulas and guidelines (such as WHO or CDC references), providing reliable estimates. However, they are for informational purposes only and should not replace professional medical advice.
These tools are useful for:
- Fitness enthusiasts
- People managing weight or diet
- Athletes tracking performance
- Anyone interested in improving their health
Yes, calorie and nutrition calculators help estimate your daily energy needs based on age, gender, activity level, and goals.
Yes, all health calculators are completely free and require no sign-up or subscription.
No, all calculators work directly in your browser. You can use them instantly without installing any software.
Yes, most tools process calculations locally in your browser and do not store personal data, helping ensure privacy and security.
- BMR (Basal Metabolic Rate): calories your body burns at rest
- TDEE (Total Daily Energy Expenditure): total calories burned including daily activities
No. While helpful for tracking and estimation, health calculators should not replace professional medical consultation or diagnosis.
Because they help you:
- Understand your body and health metrics
- Track fitness and nutrition goals
- Make informed lifestyle decisions
- Save time with instant results
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