Health Calculator offers three quick, simple calculators for general
wellness reference: BMI, daily calorie needs, and suggested daily
water intake.

WHAT'S INCLUDED
- BMI Calculator: enter your height (cm or in) and weight (kg or lb)
to see your BMI and its standard WHO category (Underweight, Normal,
Overweight, Obese).
- Calorie Needs Calculator: enter your age, sex, height, weight, and
activity level to estimate your daily calorie needs using the
well-known Mifflin-St Jeor formula.
- Water Intake Calculator: enter your weight and activity level for a
simple suggested daily water intake in liters and milliliters.

HOW IT WORKS
Pick a calculator from the bottom navigation, fill in the fields, and
tap Calculate. Each screen remembers your last-entered values so you
don't have to retype everything next time.

PRIVACY, BY DESIGN
Health Calculator works entirely offline. There is no account, no
login, and no data collection of any kind. The height, weight, age,
and other values you enter are stored only on your device — in your
phone's local app storage — and are never transmitted anywhere. There
are no ads and no third-party trackers. See the full privacy policy
for details on the (zero) permissions this app uses.

NOT MEDICAL ADVICE
Every result in this app is a general estimate for informational
purposes only. It is not medical advice, and it is not a substitute
for guidance from a qualified healthcare professional. Please consult
a doctor or registered dietitian for personalized health guidance.

WHO IT'S FOR
Anyone who wants a fast, no-friction way to check a rough BMI, calorie
target, or water intake goal — without creating an account, without
ads, and without their health details ever leaving their device.

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Additional Information