Health & Fitness Tools
11 free tools for BMI, calories, sleep, and more
Health and fitness tools turn common wellness questions into a quick, private calculation — checking a BMI, estimating daily calorie needs, finding a target heart rate zone, or figuring out how much water to aim for in a day. These calculators give general, educational estimates and are not a substitute for advice from a doctor or qualified health professional.
🏋️ All Health & Fitness Tools
Pick a tool below — every calculator opens instantly, no sign-up required.
BMI Calculator
Calculate Body Mass Index from height and weight, with the standard BMI categories.
Open Tool →BMR Calculator
Estimate your Basal Metabolic Rate — the calories your body burns at rest.
Open Tool →Body Fat Percentage Calculator
Estimate body fat percentage using standard measurement-based formulas.
Open Tool →Calories Burned Calculator
Estimate calories burned during common activities based on duration and intensity.
Open Tool →Daily Calorie Needs Calculator
Estimate daily calorie needs based on age, weight, height, and activity level.
Open Tool →Ideal Body Weight Calculator
Estimate a healthy weight range using standard reference formulas.
Open Tool →Pregnancy Due Date Calculator
Estimate a pregnancy due date from the first day of the last menstrual period.
Open Tool →Protein Intake Calculator
Estimate daily protein needs based on body weight and activity level.
Open Tool →Sleep Time Calculator
Find ideal bedtimes or wake-up times based on natural sleep cycles.
Open Tool →Target Heart Rate Calculator
Calculate target heart rate zones for moderate and vigorous exercise.
Open Tool →Water Intake Tracker
Estimate a daily water intake target and track your progress through the day.
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Why Use Browser-Based Health & Fitness Tools?
Health calculators are a convenient way to get a general estimate before or between visits with a healthcare provider, without needing to install a fitness app or create an account. EverydayTools' health utilities are quick, focused calculators for common wellness questions.
Every figure you enter — weight, age, activity level — is processed locally in your browser and never uploaded to a server. These tools are meant for general informational purposes only and don't replace professional medical, nutritional, or fitness advice.
Frequently Asked Questions
Yes, every tool in this hub is completely free, with no sign-up and no usage limits.
No. These tools provide general, educational estimates only and are not a substitute for guidance from a doctor, dietitian, or other qualified health professional.
No. All calculations run locally in your browser, so figures like weight, age, and activity level are never sent to a server.
It provides a standard estimate based on a typical 40-week pregnancy counted from the last menstrual period; an ultrasound and your healthcare provider give the most accurate due date.