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    Are You Running on Fumes?

    Free wellness tools to help you understand your sleep patterns, energy levels, and stress. No judgment, just gentle support for feeling better.

    Check My Sleep Debt

    Sleep Debt & Recovery

    Calculate your sleep debt and get a gentle recovery plan

    Daily Hydration Needs

    Estimate your daily water intake target

    Stress & Burnout Check

    Quick check-in for stress and burnout signals

    Wellness Starter Plan

    Build your personalized habit starter checklist

    How Our Calculators Work

    Evidence-Based Methodology

    Our calculators are built on peer-reviewed sleep research and wellness guidelines from organizations like the National Sleep Foundation, CDC, and American Academy of Sleep Medicine. We translate complex scientific data into practical, actionable insights you can actually use.

    Each calculator uses validated formulas that account for individual differences in age, activity level, lifestyle factors, and personal circumstances. We don't believe in one-size-fits-all recommendations.

    Privacy-First Design

    Your wellness data stays completely private. All calculations happen in your browser using JavaScript — we never send your sleep hours, stress levels, or personal inputs to any server. Your data is stored locally on your device only.

    You can use these tools anonymously, without creating an account, providing an email, or sharing any personal information. Clear your browser data anytime to remove all saved inputs.

    Understanding Wellness Metrics

    Sleep Debt: The Hidden Energy Thief

    Sleep debt is the cumulative difference between the sleep your body needs and the sleep you actually get. If you need 8 hours but only get 6, you accumulate 2 hours of sleep debt per night. Over a week, that's 14 hours — nearly two full nights of missed sleep.

    Research shows that sleep debt impacts cognitive performance, mood regulation, immune function, and metabolic health. Even moderate sleep debt (5-10 hours) can impair reaction time equivalent to being legally intoxicated. Chronic sleep debt over weeks or months increases risk for serious health conditions including cardiovascular disease, diabetes, and depression.

    The good news? Sleep debt can be repaid through consistent, gradual recovery. Our calculator helps you understand your current debt level and creates a realistic repayment plan that won't disrupt your life. Small, sustainable changes work better than dramatic weekend catch-up attempts.

    Hydration Science: More Than Just Water

    Proper hydration affects everything from cognitive clarity to physical endurance. Water makes up about 60% of your body weight and is essential for temperature regulation, nutrient transport, waste removal, and cellular function. Even mild dehydration (1-2% body weight loss) can impair concentration, increase fatigue, and reduce physical performance.

    Your hydration needs aren't static. They vary based on body weight, activity level, climate, diet, and health status. Someone exercising in hot weather may need 3-4x more water than someone sedentary in a cool environment. Caffeine, alcohol, and certain medications also affect your hydration requirements.

    Our hydration calculator considers these variables to provide a personalized daily water target. We account for water from food (fruits, vegetables, soups), other beverages, and your specific lifestyle factors. The goal isn't perfection — it's awareness and gradual improvement.

    Stress & Burnout: Recognizing the Warning Signs

    Stress and burnout exist on a spectrum. Occasional stress is normal and can even be motivating. Chronic stress becomes problematic when your body stays in "fight or flight" mode without adequate recovery time. Burnout is the endpoint — characterized by emotional exhaustion, cynicism, and reduced effectiveness.

    Early warning signs include sleep disturbances, irritability, difficulty concentrating, physical symptoms (headaches, muscle tension), social withdrawal, and feeling overwhelmed by tasks that used to feel manageable. Many people don't recognize burnout until they're deep in it because the progression is gradual.

    Our stress check asks targeted questions about physical, emotional, and behavioral indicators. It's not a diagnostic tool — it's a reality check to help you assess whether you're trending toward burnout and need to make changes. The earlier you intervene, the easier recovery becomes.

    Which Calculator Should You Use?

    CalculatorBest ForTime RequiredWhat You'll Learn
    Sleep Debt CalculatorChronic tiredness, irregular sleep schedules, recovery planning3-5 minutesYour accumulated sleep deficit and personalized recovery timeline
    Hydration NeedsAfternoon energy crashes, exercise performance, general wellness2 minutesYour daily water target based on weight, activity, and climate
    Stress CheckFeeling overwhelmed, burnout risk assessment, emotional awareness4-6 minutesYour stress level and specific areas needing attention
    Wellness Starter PlanBuilding new habits, getting started with wellness, accountability5-8 minutesYour personalized habit checklist with specific action steps

    Getting Started: Your First 5 Minutes

    1

    Choose Your Focus

    Start with whatever's bothering you most. Tired all the time? Try the Sleep Debt Calculator. Energy crashing mid-afternoon? Check your hydration. Feeling overwhelmed? Take the stress check. There's no wrong starting point.

    2

    Input Your Data

    Answer the questions honestly. Don't report what you think you "should" be doing — tell us what's actually happening. The calculators work best with real data. If you don't know exact numbers, estimates are fine.

    3

    Review & Act

    Read your personalized results and recommendations. Pick one small action to try this week — not five, not ten, just one. Small, consistent changes create lasting impact. You can always come back and try more later.

    What You Can Expect

    Instant, Personalised Results

    Every calculator gives you numbers tailored to your inputs — not generic advice. Enter your actual sleep hours, weight, or stress indicators and get a clear picture of where you stand, plus actionable next steps.

    Evidence-Based, Not Guesswork

    Our formulas draw from peer-reviewed sleep science, clinical hydration guidelines, and validated stress assessment frameworks. We cite our sources and explain the methodology so you know exactly how results are calculated.

    Export & Share Your Results

    Download your results as a PDF, share them with friends or family, or save your inputs to revisit later. Your data stays in your browser — we never store it on our servers.

    Why Choose Our Wellness Tools?

    No Account Required

    Use every calculator instantly without signing up, creating passwords, or providing email addresses. Your time is valuable — we respect that.

    Research-Backed Formulas

    Our calculators use established formulas from sleep medicine research, sports science, and clinical wellness guidelines — not random internet advice.

    Judgment-Free Zone

    We understand real life is messy. No shaming, no "you must do this," no unrealistic perfectionism. Just practical support and realistic suggestions.

    Complete Privacy

    Your personal wellness data never leaves your browser. We can't see your sleep hours, stress levels, or any calculator inputs. Ever.

    Mobile Friendly

    All calculators work perfectly on phones and tablets. Track your wellness wherever you are, whenever you need it.

    Always Free

    No premium tiers, paywalls, or hidden costs. These tools exist to help people feel better — period. They'll always be free.

    Important Medical Disclaimer

    These calculators provide general wellbeing information based on established wellness guidelines and research. They are educational tools designed to increase awareness and suggest potential areas for improvement.

    This is not medical advice. Results from our calculators are estimates based on general population data, not personalized medical recommendations. If you're experiencing chronic fatigue, sleep disorders, persistent stress, dehydration symptoms, or any concerning health issues, please consult a qualified healthcare professional. Do not delay seeking medical advice because of information you read here.