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Free nutrition calculators and mental health tools designed to help you understand your body and mind — no paywalls, forever.

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Nutrition

Free nutrition calculators

Evidence-based tools to help you understand your body's nutritional needs

BMI Calculator

Calculate your Body Mass Index and find out if you're in a healthy weight range for your height and age.

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Calorie Calculator

Find your Total Daily Energy Expenditure (TDEE) based on your age, weight, height, and activity level.

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Water Intake Calculator

Get your personalised daily water intake recommendation based on your body weight, activity, and climate.

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Macro Splitter

Calculate the ideal protein, carbohydrate, and fat split for your weight loss, muscle gain, or maintenance goal.

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Ideal Weight Calculator

Discover your ideal healthy weight range using four medically recognised formulas, personalised by frame size.

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Mental Health

Free mental health tools

Science-backed tools to support your emotional wellbeing every single day

Stress Level Test

Answer 10 science-based questions (PSS scale) and get your personalised stress score with tips to manage it.

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Mood Tracker

Log your daily mood and track patterns over time. Requires a free account to save your mood history.

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Breathing Exercise

Animated breathing guides for anxiety relief and relaxation. Try 4-7-8 breathing or box breathing technique.

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Sleep Quality Checker

Evaluate your sleep habits and get a quality score with actionable tips to sleep better and wake up refreshed.

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Gratitude Journal

Write 3 things you're grateful for each day. Build a positive mindset habit backed by psychological research.

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Burnout Risk Test

Take our 12-question burnout assessment and get your risk level with a personalised recovery plan.

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Track your wellness journey

Create a free account to save your mood logs, gratitude journal, and track your progress over time.

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Frequently asked questions

Yes — every tool on WellnessHub is 100% free to use. No subscription, no credit card, no hidden fees. We are supported by Google AdSense advertising.

Most tools work without an account. You only need a free account to save your mood tracker history and gratitude journal entries across sessions.

Our nutrition tools use industry-standard formulas: Mifflin-St Jeor for calorie calculations and multiple medically recognised formulas for ideal weight. They are reliable estimates but not medical advice — consult a doctor for personalised guidance.

Yes. We do not sell your personal data. Mood and journal entries are stored securely and linked only to your account. Please read our Privacy Policy for full details.

Our Stress Level Test is based on the Perceived Stress Scale (PSS-10), a validated psychological tool developed by Dr Sheldon Cohen (1983). It is one of the most widely used measures of perceived stress.