Free Health Calculators
Simple, easy-to-use health calculators to help you understand common health, nutrition and fitness measurements.
BMI Calculator
Calculate Body Mass Index using your height and weight.
Calculate BMI →BMR Calculator
Estimate your Basal Metabolic Rate using age, height, weight and sex.
Calculate BMR →Calorie Calculator
Estimate daily calorie needs, maintenance calories and calorie targets.
Calculate Calories →Water Intake Calculator
Get a simple educational estimate of daily fluid needs.
Calculate Water →Ideal Weight Calculator
Explore an adult BMI-based reference weight range.
Calculate Ideal Weight →Protein Calculator
Estimate daily protein needs based on body weight and activity.
Calculate Protein →Macro Calculator
Estimate daily protein, carbohydrate and fat targets.
Calculate Macros →TDEE Calculator
Estimate total daily energy expenditure using activity level.
Calculate TDEE →Body Fat Calculator
Estimate body fat percentage using available body measurements.
Calculate Body Fat →Pace Calculator
Calculate running or walking pace from distance and time.
Calculate Pace →Steps to Calories Calculator
Estimate calories burned from your daily step count.
Calculate Steps →Heart Rate Calculator
Explore estimated maximum and target heart-rate ranges.
Calculate Heart Rate →🔥 Calorie Calculator
Want to know how many calories you may need each day? Use the HealthMelo Calorie Calculator to estimate BMR, maintenance calories and simple weight loss or weight gain calorie targets.
Use Calorie Calculator →Why Use HealthMelo Tools?
HealthMelo calculators are designed to make common health, nutrition and fitness measurements easier to understand.
Our tools provide simple estimates based on information such as height, weight, age, sex and activity level.
12 Free Health Calculators
- BMI Calculator — estimates Body Mass Index.
- BMR Calculator — estimates Basal Metabolic Rate.
- Calorie Calculator — estimates daily calorie needs.
- Water Intake Calculator — provides a general fluid estimate.
- Ideal Weight Calculator — provides an adult BMI-based reference range.
- Protein Calculator — estimates daily protein needs.
- Macro Calculator — estimates protein, carbohydrate and fat targets.
- TDEE Calculator — estimates total daily energy expenditure.
- Body Fat Calculator — estimates body fat percentage.
- Pace Calculator — calculates running or walking pace.
- Steps to Calories Calculator — estimates calories from steps.
- Heart Rate Calculator — estimates maximum and target heart-rate ranges.
Are Health Calculator Results Accurate?
Health calculators provide estimates rather than exact measurements. Individual results can vary depending on body composition, metabolism, activity level, age and other personal factors.
Frequently Asked Questions
What is a health calculator?
A health calculator is an online tool that uses information such as age, height, weight or activity level to provide an estimate related to a specific health or wellness measure.
Are HealthMelo calculators free?
Yes. HealthMelo provides these calculators as free educational and informational tools.
What calculators are available on HealthMelo?
HealthMelo currently provides 12 calculators covering BMI, BMR, calories, hydration, weight, protein, macros, TDEE, body fat, pace, steps and heart rate.
Can calculator results be used as medical advice?
No. Calculator results are general estimates and should not replace personalized medical advice, diagnosis or treatment from a qualified healthcare professional.
Important Health Information
These calculators are not medical diagnostic tools and should not replace professional medical advice, diagnosis or treatment.
If you have concerns about your health, speak with a qualified healthcare professional.