BMI Calculator
Calculate body mass index from height and weight.
Your everyday wellness toolkit
Free Health Tools & Calculators
Explore practical calculators for BMI, daily calorie needs, adult weight ranges, fluid estimates, blood glucose conversion, and macronutrients. Get a quick estimate and use it as a starting point for informed conversations about your health.
Quick access
Choose a Health Calculator
Enter your information below. Calculations run in your browser; no account is required.
Daily Calorie Calculator
Estimate daily energy needs using activity and personal details.
Healthy Adult Weight Range
Estimate the adult weight range corresponding to BMI 18.5–24.9.
Water Intake Estimator
A simplified starting estimate for daily fluid intake.
Blood Sugar Converter
Convert glucose measurements between mg/dL and mmol/L.
Macronutrient Calculator
Break a calorie target into carbohydrate, protein, and fat estimates.
Use information wisely
Understanding Your Results
Calculators offer general estimates and cannot assess every aspect of your health.
Important health information
BMI age handling: For adults aged 20 and older, this calculator displays standard adult BMI categories. For ages 2–19, it displays the BMI number only and does not apply adult categories; interpretation for children and teenagers requires age- and sex-specific BMI percentiles and a suitable growth chart. BMI is a screening measure, not a diagnosis.
Calorie, weight-range, hydration, and macronutrient estimates are not personalized medical recommendations. Blood glucose conversion changes units only; it does not determine whether a reading is safe or whether treatment should change.
If you have diabetes, kidney or heart disease, are pregnant, have a history of disordered eating, or have a prescribed diet or fluid restriction, consult an appropriately qualified healthcare professional before making changes based on these estimates.
MaxproHealth provides general educational information, not medical diagnosis or treatment. Do not delay professional care because of a calculator result.
Frequently asked questions
Health Tools FAQ
Are these calculators free?
Yes. The six calculators on this page are free to use and calculate results in your browser.
Are the results medical advice?
No. Results are estimates for general education and are not a substitute for individualized advice from a qualified healthcare professional.
How accurate is the calorie calculator?
It uses a commonly used resting-energy equation and activity multiplier. Actual energy needs can differ due to body composition, health, medications, and other factors.
Can I use the blood sugar converter to assess glucose control?
The converter changes units only. Follow your personal care plan and seek professional advice about interpreting readings or changing treatment.
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