Health & Fitness Calculators — 39 Free Online Tools

39 tools in Health & Fitness Calculators

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Blood Alcohol Content (BAC) Calculator

Estimate your blood alcohol content (BAC) based on drinks consumed, weight, gender, and time.

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Blood Pressure Analyzer - BP Category & Risk Assessment

Analyze your blood pressure reading and determine your BP category (normal, elevated, hypertension stage 1 or 2) with health recommendations based on…

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Blood Type Compatibility Checker

Check blood transfusion and donation compatibility between blood types. ABO and Rh factor guide.

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BMI Calculator

Calculate your Body Mass Index (BMI) instantly. Enter height and weight to get BMI with interpretation. Supports metric and imperial units.

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BMR Calculator - Basal Metabolic Rate & Daily Calorie Needs

Calculate your BMR and daily calorie needs for weight loss, maintenance, or muscle gain. Uses Mifflin-St Jeor formula.

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Body Fat Percentage Calculator

Calculate your body fat percentage using the Navy method or BMI method. Track your fitness progress.

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Body Fat Percentage Calculator - Navy Method & BMI

Calculate your body fat percentage using the US Navy method and BMI method. Get your fitness category and healthy body fat range for your age and…

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Calorie Burn Calculator

Calculate calories burned during various exercises and physical activities.

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Calorie Calculator for Indian Foods

Look up calories in Indian foods — dal, rice, roti, sabzi, snacks. Calculate calories for your daily Indian meals.

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Calorie Deficit Calculator for Weight Loss

Calculate your daily calorie deficit needed to lose weight at your target rate.

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Daily Calorie Calculator

Calculate daily calorie needs based on age, gender, height, weight, and activity level. Get BMR and TDEE for weight loss, maintenance, or gain.

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Daily Hydration Tracker

Track your daily water glasses online. Set your hydration goal and log each glass consumed today.

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Daily Water Intake Calculator

Calculate how much water you should drink per day based on your weight, activity level, and climate.

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Heart Rate Calculator

Calculate your maximum heart rate and target heart rate zones for fat burning, cardio, and peak performance.

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Heart Rate Zone Calculator

Calculate your target heart rate zones for fat burn, cardio, and peak training based on age and max HR.

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Heart Rate Zone Calculator

Calculate your target heart rate zones for fat burning, cardio, and peak performance. Based on age and max heart rate.

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Heart Rate Zone Calculator - Training Zones for Exercise

Calculate your 5 heart rate training zones for fat burn, cardio, and peak performance based on your max heart rate.

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Ideal Body Weight Calculator

Calculate your ideal body weight based on height and gender. Compare multiple ideal weight formulas.

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Ideal Weight Calculator

Calculate your ideal body weight based on height, gender, and frame size using multiple formulas (Hamwi, Devine, Robinson).

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Ideal Weight Calculator

Calculate your ideal body weight using multiple formulas: Devine, Robinson, Miller, and Hamwi. Get weight ranges for height.

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Indian Food Calorie Counter

Look up calories in popular Indian foods and dishes. Track your daily calorie intake with Indian recipes.

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Macro Calculator — Protein, Carbs & Fat

Calculate your daily macronutrient requirements. Get exact grams of protein, carbohydrates, and fat based on your goals.

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Macro Nutrient Calculator - Protein, Carbs & Fat Goals

Calculate your daily macronutrient targets (protein, carbohydrates, and fat) based on your body, goals, and diet preference for optimal fitness…

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Nutrition Label Maker

Create custom nutrition facts labels for food products. Download as HTML or print.

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Ovulation Calculator

Calculate your fertile window and ovulation date based on your cycle length and last period date.

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Pace Calculator - Running Pace, Speed & Finish Time

Calculate running pace, speed, and finish time for 5K, 10K, half marathon, and full marathon. Convert between km/h and min/km.

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Pregnancy Due Date Calculator

Calculate your pregnancy due date instantly. Enter your last menstrual period (LMP) date to find your estimated due date and current week.

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Pregnancy Due Date Calculator

Calculate your pregnancy due date, trimester, and week by week milestones from your last menstrual period.

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Pregnancy Due Date Calculator - EDD & Week Tracker

Calculate your pregnancy due date (EDD), current week, trimester, and key milestones based on your last menstrual period or conception date.

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Protein Intake Calculator

Calculate daily protein requirements based on weight, goals, and activity level. Find your optimal protein intake for muscle gain or fat loss.

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Protein Intake Calculator

Calculate your daily protein requirement based on your weight, goals and activity level.

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Running Pace Calculator

Calculate your running pace, finish time, or distance. Convert between min/km and min/mile.

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Sleep Cycle Calculator

Calculate the best time to wake up or go to sleep based on 90-minute sleep cycles. Optimize your sleep for feeling refreshed.

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Sleep Cycle Calculator

Find the best bedtime or wake-up time based on 90-minute sleep cycles. Wake up refreshed every time.

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Steps to Calories Calculator

Convert daily steps to calories burned. Find how many steps equals 1 km or 1 mile.

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TDEE & Calorie Calculator

Calculate your Total Daily Energy Expenditure (TDEE) and daily calorie needs for weight loss, maintenance, or muscle gain.

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Waist-to-Hip Ratio Calculator

Calculate your waist-to-hip ratio (WHR) to assess health risk. Understand body fat distribution and cardiovascular risk.

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Water Intake Calculator

Calculate how much water you should drink daily based on your weight, activity level, and climate. Stay hydrated!

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Weekly Workout Planner

Create a personalized weekly workout schedule. Choose your fitness goal, available days, and get a structured plan.

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About Health & Fitness Calculators

Simple health maths, explained properly: BMI, BMR, calorie targets, macros, body fat, heart-rate zones, hydration, sleep cycles and pregnancy dates.

These calculators give general estimates based on published formulas, and each page says which formula it uses and where it falls short. They are not medical advice and cannot replace a doctor, dietitian or trainer, especially if you are pregnant, managing a condition or taking medication.

AMTools is built and maintained by HelloMarketing.in. Every tool is free to use with no account or payment required. See our disclaimer and privacy policy.

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