Free Health Tracking
Tools & Guides

Everything you need to track, understand, and improve your health — completely free from tr8ck.

🧮 Calculators & Quizzes

104 Free Health Calculators

Instant results, no sign-up. Pick a category to jump to a tool.

Jump to category: Body Composition Nutrition Fitness Sleep Mental Health GLP-1 Women's Health Water Fasting Longevity Medical Fun & Lifestyle Try tr8ck free →

Body Composition

📏

BMI Calculator

Calculate your Body Mass Index and see your category.

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📐

Body Fat Estimator

Estimate body fat percentage from measurements.

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🎯

Ideal Weight Calculator

Find your ideal weight range based on height and frame.

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📊

Waist-to-Hip Ratio

Check your metabolic health risk from waist and hip measurements.

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💪

Lean Body Mass

Calculate your lean mass and muscle-to-fat ratio.

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🔄

Body Recomposition

Build muscle while losing fat — get your targets.

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Nutrition & Calories

🔥

TDEE Calculator

Your total daily energy expenditure based on activity level.

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BMR Calculator

Basal metabolic rate — calories your body burns at rest.

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🥗

Macro Calculator

Get your ideal protein, carbs, and fat split.

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📉

Calorie Deficit

Find the right deficit for sustainable weight loss.

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🥩

Protein Intake

Daily protein target based on your goals and activity.

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🍽️

Meal Calorie Estimator

Estimate any meal's calories from ingredients.

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Fitness & Activity

🏃

Calorie Burn Calculator

Calories burned for 60+ exercises by duration and weight.

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❤️

Heart Rate Zones

Find your fat-burn, cardio, and peak heart rate zones.

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🫁

VO2 Max Estimator

Estimate your cardiovascular fitness level.

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🏋️

One Rep Max

Calculate your 1RM from submaximal lifts.

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👟

Step Goal Calculator

Find your optimal daily step target for your goals.

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🏅

5K Pace Calculator

Get your target pace and splits for a 5K run.

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Sleep & Recovery

😴

Sleep Calculator

Find the best bedtime and wake time for full sleep cycles.

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💤

Sleep Debt Calculator

See how much sleep debt you've accumulated this week.

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🦁

Chronotype Quiz

Discover if you're a lion, bear, wolf, or dolphin.

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⏲️

Nap Duration Calculator

Find the perfect nap length to avoid grogginess.

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Mental Health & Wellness

😰

Stress Quiz

Assess your stress level and get coping strategies.

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🔥

Burnout Assessment

Check your burnout risk across work, life, and health.

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💭

Anxiety Score

Quick GAD-based anxiety level assessment.

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🔋

Social Battery Quiz

Find out how much social energy you have left today.

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🌙

Mood-Sleep Correlation

See how your sleep patterns affect your mood.

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GLP-1 & Weight Loss

📈

GLP-1 Weight Projection

Project your weight loss timeline on GLP-1 medication.

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💉

GLP-1 Dose Timeline

See your dose escalation schedule for any GLP-1.

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💰

GLP-1 Cost Calculator

Compare monthly costs across GLP-1 medications.

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⚠️

GLP-1 Side Effects Tracker

Check your side effect profile and severity.

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⚖️

GLP-1 vs Diet Comparison

Compare GLP-1 vs diet-only weight loss outcomes.

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📅

Weight Loss Timeline

Realistic timeline to reach your goal weight.

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Women's Health

🌙

Cycle Phase Calculator

Find your current cycle phase and what to expect.

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🥚

Ovulation Estimator

Estimate your fertile window and ovulation day.

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📅

PMS Predictor

Predict when PMS symptoms will start each cycle.

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⚖️

Hormone Balance Quiz

Check for signs of hormonal imbalance.

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Water & Hydration

💧

Water Intake Calculator

How much water you need based on weight and activity.

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🏜️

Dehydration Risk

Check your risk based on intake, activity, and environment.

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Water Today Tracker

Are you on track with today's water intake?

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Fasting

⏱️

Fasting Schedule

Plan your fasting window — 16:8, 18:6, OMAD, or 5:2.

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💰

Fasting Calorie Savings

See how many calories fasting saves you.

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🔍

Fasting Window Finder

Find the best fasting window for your schedule.

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🔄

Metabolic Switch Timer

When your body switches from glucose to fat burning.

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Longevity & Aging

🧬

Biological Age

See if your body is aging faster or slower than your years.

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📊

Life Expectancy

Estimate your life expectancy based on lifestyle factors.

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🏃

Healthspan Calculator

How many healthy, active years can you expect?

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🔬

Telomere Age Estimator

Estimate cellular aging from lifestyle factors.

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Medical Screening

🩺

Blood Pressure Checker

Check your BP category using AHA guidelines.

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🩸

Blood Sugar Risk

Assess your diabetes risk from blood sugar and lifestyle.

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🔥

Inflammation Risk Score

Assess chronic inflammation risk from your habits.

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🦠

Gut Health Quiz

Rate 8 symptoms to assess your digestive health.

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🦋

Thyroid Symptom Checker

Check for signs of thyroid dysfunction.

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Fun & Lifestyle

🧬

Health Personality Quiz

Are you an Optimizer, Intuitor, or Crisis Manager?

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Health Age vs Real Age

Are you biologically younger or older?

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🎄

Holiday Weight Gain

Estimate holiday surplus and get an offset plan.

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☀️

Summer Body Countdown

Week-by-week feasibility check for your summer goals.

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🎯

Resolution Predictor

Predict your New Year resolution success rate.

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Caffeine Half-Life

When will your last coffee stop affecting your sleep?

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Track all of this in one app →
💉 GLP-1 & Medication

GLP-1 & Weight Loss Medication Guides

💉

GLP-1 Tracker Guide

How to track your Ozempic, Wegovy, or Mounjaro journey effectively.

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⚖️

Ozempic Weight Loss Tracker

Track weekly weight loss progress on Ozempic with the right metrics.

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📊

Wegovy Tracker

Everything to track on semaglutide — from weight to side effects.

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💊

Mounjaro Tracker

Track tirzepatide doses, weight loss, and side effects in one place.

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🤢

GLP-1 Nausea Tracker

Log and manage nausea patterns on GLP-1 medications.

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🩺

GLP-1 Injection Tracker

Never miss a dose — track injection days, sites, and doses.

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📈

Semaglutide Tracker

Complete guide to tracking your semaglutide progress.

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⚠️

Tirzepatide Side Effects Tracker

Track and correlate side effects with doses and timing.

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📖 How-To Guides

Step-by-Step Health Tracking Guides

⚖️

How to Track Weight Loss

The right metrics to track, when to weigh, and how to interpret trends.

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😴

How to Track Sleep Quality

Go beyond hours — track the sleep factors that actually affect your health.

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🧠

How to Track Mood

Evidence-based mood tracking that reveals patterns and triggers.

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🥗

How to Track Macros

Protein, carbs, and fat tracking made simple — no obsessing required.

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🔢

How to Track Calories

Track calories accurately without making eating stressful.

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💧

How to Track Water Intake

Simple hydration tracking that actually sticks long-term.

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💊

How to Track Medication

Track adherence, dosing, and side effects for any medication.

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🏋️

How to Track Exercise

Track workouts, recovery, and fitness progress that drives results.

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💬

How to Track Mental Health

Simple daily mental health check-ins that reveal what helps you thrive.

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🌙

How to Track Your Cycle

Connect cycle phases to energy, mood, and wellness patterns.

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📊

Best Health Metrics to Track

The 12 metrics that actually predict long-term health outcomes.

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🤖

AI Health Insights Guide

How AI finds health patterns you'd never spot manually.

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❤️ Condition Trackers

Health Condition Tracking Guides

🤯

Migraine Tracker

Track triggers, frequency, and patterns to reduce migraine frequency.

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😰

Anxiety Tracker

Daily anxiety logging that reveals triggers and what actually helps.

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🌸

PCOS Tracker

Track symptoms, cycles, and nutrition to manage PCOS naturally.

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🦋

Hypothyroid Tracker

Connect thyroid symptoms to diet, sleep, and medication timing.

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🩸

Diabetes Tracker

Track glucose, medication, diet, and activity for better control.

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🌡️

Chronic Pain Tracker

Log pain levels alongside sleep, stress, and movement to find patterns.

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🌫️

Brain Fog Tracker

Identify what causes your brain fog by tracking the right variables.

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Energy Levels Tracker

Find your energy patterns and unlock consistent vitality.

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💡 Health Insights

Understand Your Body Better

😴

Does Sleep Affect Weight Loss?

The science behind sleep and metabolic rate — with tracking tips.

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😤

Does Stress Affect Weight?

Cortisol, cravings, and weight — how to track and break the cycle.

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⏱️

Does Fasting Improve Mood?

What the data says and how to track fasting's effect on your mind.

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📅

How Often Should You Weigh Yourself?

Daily vs. weekly weigh-ins — what actually drives better outcomes.

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Best Time to Weigh Yourself

When to step on the scale for the most accurate, useful readings.

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🔗

Health Correlation Explained

How connecting your health data points reveals what actually matters.

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📝

Why Track Your Health Data?

The evidence for health tracking — and how to start without overwhelm.

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🚀

Health Tracking for Beginners

Start with just 3 metrics and build from there — a simple framework.

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Frequently Asked Questions

Are tr8ck's free tools really free?

Yes. All guides, trackers, and resources listed on this page are completely free to access. tr8ck's free plan includes 4 tracking modules of your choice, and the free tools here require no account or sign-up.

Which tr8ck modules are free?

tr8ck's free plan includes any 4 modules of your choice — GLP-1 tracking, mood logging, sleep tracking, nutrition, water intake, exercise, fasting, cycle, weight, steps, and meditation are all available to pick. Pro ($4.99/mo billed yearly) unlocks all 17 at once, and Premium ($6.99/mo billed yearly) adds AI insights.

Do I need to pay for AI insights?

AI-powered health insights are included in tr8ck Premium ($6.99/mo billed yearly). tr8ck's AI correlates your data across all modules — sleep, mood, nutrition, exercise — and surfaces patterns that separate apps can't see.

Is there a free trial before committing?

tr8ck has a free plan with no credit card required — pick any 4 tracking modules. Pro ($4.99/mo billed yearly) unlocks all 17, and Premium ($6.99/mo billed yearly) adds AI insights. Early-access members keep their locked-in rate — that promise stands.

All tools. One app.

tr8ck connects everything above into one AI-powered health tracker that finds the patterns for you.

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