Discover your biological age based on sleep, exercise, diet, stress, smoking, and alcohol habits. Find out if your lifestyle is ageing you faster or slower than your chronological age.

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BMI Calculator

Calculate your Body Mass Index (BMI) instantly. Find out if you're underweight, normal weight, overweight, or obese, and get your personalized healthy weight range.

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BMR Calculator

Calculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) using the Mifflin-St Jeor equation. Understand how many calories your body burns at rest.

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Body Fat Calculator

Calculate your body fat percentage using the US Navy method. Get an accurate body composition estimate based on waist, neck, and hip measurements.

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Burnout Risk Test

Take our burnout risk assessment to find out if you're heading toward burnout. Get a score across 4 dimensions: exhaustion, cynicism, efficacy, and recovery — with a personalized prevention plan.

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Calorie Calculator

Calculate your daily calorie needs using the Mifflin-St Jeor equation. Find your TDEE, BMR, and personalized calorie targets for weight loss, maintenance, or muscle gain.

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Ideal Weight Calculator

Find your ideal body weight using four proven clinical formulas (Hamwi, Devine, Robinson, Miller). Get a personalized target weight range based on your height and gender.

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Macro Calculator

Calculate your optimal daily macronutrient split — protein, carbohydrates, and fat — based on your body stats and goal. Free, science-backed macro calculator.

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Protein Intake Calculator

Calculate your ideal daily protein intake based on body weight, activity level, and fitness goal. Get science-backed protein targets for muscle gain, fat loss, or maintenance.

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Resting Heart Rate Calculator

Enter your resting heart rate to instantly find out your cardiovascular fitness category — from athlete to at-risk. Includes estimated max HR and heart rate reserve.

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Sitting Damage Calculator

Calculate the health risk score from your daily sitting time. Discover how much sedentary behavior impacts your longevity and get personalized movement strategies.

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Sleep Cycle Calculator

Calculate optimal bedtimes and wake-up times based on 90-minute sleep cycles. Wake up refreshed every morning by timing your sleep to natural REM cycles.

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Steps to Calories Calculator

Convert your daily step count to calories burned. Calculate exactly how many calories you burn walking based on your weight and step count.

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Stress Level Test

Take this 5-question Perceived Stress Scale quiz to measure your current stress level. Find out if your stress is low, moderate, high, or very high — and what to do about it.

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Waist-to-Height Ratio Calculator

Calculate your waist-to-height ratio instantly. Find out if your central body fat level indicates healthy, overweight, or high cardiometabolic risk — more accurate than BMI alone.

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Water Intake Calculator

Calculate your ideal daily water intake based on your body weight, activity level, and climate. Get a personalized hydration target in liters and glasses.

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Weight Loss Timeline Calculator

Calculate exactly how many weeks it will take to reach your goal weight based on your daily calorie deficit. Uses the 7,700 kcal per kg scientific formula.

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Weight Gain Plan Calculator

Calculate exactly how many weeks it will take to reach your goal weight based on your daily calorie surplus. Science-based timeline for muscle gain.

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Productivity tools

Plan your day, reduce waste, and make better work decisions.

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Daily Energy Planner

Generate a personalized daily schedule based on your chronotype and natural energy cycles. Align deep work, meetings, and recovery to your biological peak performance times.

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Decision Fatigue Meter

Measure your daily decision load and get a decision fatigue score. Discover how cognitive overload affects your choices and willpower — and learn science-backed strategies to reduce mental drain.

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Focus Score Quiz

Take our 10-question focus assessment to get your personal focus score (0–100). Discover your focus patterns and get a personalized plan to improve your concentration and deep work capacity.

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Goal Breakdown Generator

Break any big goal into monthly, weekly, and daily action steps automatically. Turn overwhelming goals into clear, achievable daily targets with our free goal breakdown tool.

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Habit ROI Calculator

Calculate the lifetime return on investment of any daily habit. Discover the compounding value of small consistent actions over months and years.

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Life Countdown Calculator

Calculate how many years, months, weeks, and days you have left to live based on your age and life expectancy. A powerful tool to inspire intentional living.

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Procrastination Cost Calculator

Calculate the real financial and time cost of procrastination. Discover how much money and opportunity you lose every year by putting things off — and what it adds up to over a decade.

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Promotion Readiness Score

Take the promotion readiness assessment and get a score from 0–100. Discover exactly what's holding you back from your next career level — with a personalized action plan.

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Morning Routine Generator

Generate a personalized morning and evening routine based on your goals, wake time, and available time. Build habits that successful people swear by — customized for your life.

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Time Waste Calculator

Calculate how many hours you waste per year on social media, TV, unproductive meetings, and digital distractions. Get a wake-up call and reclaim your time.

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Money tools

Income, pricing, savings, and financial decision calculators.

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Freelance Project Pricing Calculator

Calculate the right price for any freelance project. Enter estimated hours, complexity, revision rounds, and desired profit margin — and get a fair, defensible project quote.

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Hourly Rate Calculator

Calculate your minimum viable hourly rate as a freelancer or consultant. Factor in taxes, expenses, non-billable time, and profit margins to get a rate that actually works financially.

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Income Goal Calculator

Reverse-engineer your income goal. Enter your target salary and see exactly how many clients, sales, or hours you need — broken down daily, weekly, and monthly.

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Learning ROI Calculator

Calculate the return on investment of any course, book, bootcamp, or certification. See the payback period, 10-year value, and ROI % before you spend time or money on learning.

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Meeting Cost Calculator

Calculate the true cost of your meetings in dollars. Find out how much your company spends on meetings per year and whether they're worth the investment.

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Meeting Salary Calculator

Calculate the true salary cost of any meeting and its annual total. Supports multiple currencies. Show your team what meetings actually cost to make every call intentional.

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Money Leak Calculator

Discover your hidden money leaks — the small recurring expenses that silently drain your wealth. Calculate how much you lose annually and see the 10-year investment opportunity cost.

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Savings Timeline Calculator

Calculate exactly how long it takes to reach any savings goal. Enter your monthly savings, current balance, and interest rate — and see your target date with a year-by-year breakdown.

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Savings Rate Calculator

Calculate your savings rate and years to financial independence using standard FIRE math with a 4% safe withdrawal rate.

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Side Hustle Generator

Generate personalized side hustle ideas based on your skills, available time, and income goals. Get specific recommendations with earning potential, startup costs, and first steps.

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Skill ROI Calculator

Calculate the return on investment of learning a new skill. Enter the cost, time to learn, and expected income boost — see the ROI percentage, payback period, and 5-year value.

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Other tools

Other helpful utilities that don’t fit neatly into health, productivity, or money.

🔐

Password Generator

Generate strong, random passwords instantly. Choose length and character types (letters, numbers, symbols). Free, no signup, runs in your browser.

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QR Code Creator

Create QR codes instantly for URLs, text, or contact info. Free QR code generator with no signup required. Download as PNG.

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English-only tools

Tools that are currently available only in English.

From the blog

Articles about habits, productivity, wellness, and personal growth.

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