Health Calculator

Most health apps want your account, your location, and your data — Health Calculator wants none of that. Open it, enter a few numbers, and get real answers about your body: no logins, no syncing, no ads interrupting your results.

At its core, this app runs five calculators built on established formulas rather than guesswork. Your BMI is calculated instantly and sorted into a clear category — underweight, normal, overweight, or obese — with a plain-language note so the number actually means something. From there, the Ideal Weight tool gives you a realistic range (not a single misleading figure) based on your height and gender. The Body Fat Estimate tool goes a layer deeper, combining your BMI with your age and gender for a more personalized read. For anyone tracking energy needs, the Daily Calorie tool breaks your results into three practical numbers: maintenance, a mild deficit, and a mild surplus, so you can plan meals around real targets instead of vague advice. And because hydration gets overlooked constantly, the Water Intake calculator turns your weight and activity level into a straightforward daily goal, shown in both liters and cups.

Every calculation you run gets automatically saved to your personal history, so you can look back and see how your numbers shift over time — no manual logging required, no account needed to keep the record.

What you'll find inside:
- Five dedicated calculators: BMI, Ideal Weight, Body Fat, Daily Calories, Water Intake
- Automatic unit conversion between metric and imperial
- Color-coded results so you instantly understand where you stand
- Auto-saved calculation history you can revisit or clear anytime
- A plain-language guide explaining exactly how each formula works
- A clean, calm interface built around clarity, not clutter

Health Calculator isn't trying to be a full fitness platform — it's trying to be the fastest, clearest way to answer the specific health questions that come up in everyday life, whenever you need an honest number.