Health & Wellness Tools

Semaglutide Dosage Calculator

Calculate your semaglutide dose in units, plan titration schedule, and track dosing. Free and private.

Free Testosterone Calculator

Calculate free and bioavailable testosterone using the Vermeulen method. Instant results, 100% private.

One Rep Max Calculator (1RM)

Calculate your 1RM for bench press, squat, and deadlift using 7 proven formulas.

Protein Intake Calculator

Calculate daily protein needs for muscle gain, weight loss, or maintenance based on your goals.

Creatine Dosage Calculator

Calculate optimal creatine loading and maintenance dose based on body weight. Science-backed.

Biological Age Calculator

Discover your body's real age based on 12 science-backed lifestyle and health factors. Free quiz.

Blood Sugar Converter

Convert blood sugar between mg/dL and mmol/L. Check normal, pre-diabetic, and diabetic ranges for fasting, post-meal, and A1C.

Blood Pressure Checker

Check your blood pressure reading against AHA categories. Understand your systolic and...

BMI & Health Risk Assessment

Check your BMI and health risk with waist-to-height ratio analysis. Get a...

Daily Calorie Intake Calculator

Calculate your daily calorie needs using the Mifflin-St Jeor equation. Get BMR, TDEE,...

Calorie Deficit Calculator

Calculate your daily calorie deficit to lose weight safely. Free, private calculator...

Resting Heart Rate Checker

Check if your resting heart rate is normal for your age, gender, and fitness level....

HRV Stress Score Calculator

Analyze your heart rate variability to understand stress, recovery, and autonomic nervous system balance.

Macro Calculator

Calculate your daily macronutrient targets for protein, carbs, and fat. Choose...

Medication Reminder Planner

Plan your medication schedule with precise dose times based on frequency and meals....

Sleep Calculator

Calculate the best time to sleep or wake up based on 90-minute sleep cycles. Find...

Daily Water Intake Calculator

Calculate your daily water intake based on weight, activity level, climate, and...

ADHD Self-Screening Test (ASRS v1.1)

Take the WHO adult ADHD screening quiz. 18 questions, instant results, 100% private.

Sensory Processing Disorder Test

Assess your sensory profile across 7 systems. 21 questions, instant results, 100% private.

Autism Signs by Age Checker

Check age-appropriate autism signs from infancy to adulthood. Evidence-based checklist, 100% private.

ADHD Task Breaker

Break overwhelming tasks into tiny, dopamine-friendly micro-steps. Beat task paralysis.

Dopamine Menu Builder

Build your personal dopamine menu — activities organized by effort level for ADHD brains.

Time Blindness Calculator

Get realistic time estimates with ADHD buffers for transitions, startup, and distractions.

Anxiety Test (GAD-7)

Take the free GAD-7 anxiety screening quiz. 7 questions, instant results, 100% private.

Depression Test (PHQ-9)

Screen for depression with the PHQ-9 questionnaire. 9 questions, instant results, private.

Burnout Test

Assess burnout risk across exhaustion, cynicism, and inefficacy. 15 questions, 100% private.

Stress Level Test (PSS-10)

Measure your perceived stress with the PSS-10 scale. 10 questions, instant results, private.

Remote Work Burnout Risk Score

Assess your remote work burnout risk across exhaustion, detachment, and efficacy. 20 questions based on the Maslach Burnout Inventory. Free, 100% private.

Self-Esteem Test (Rosenberg Scale)

Assess your self-esteem with the Rosenberg scale. 10 questions, instant results, 100% private.

Breathing Exercise Timer

Practice box breathing, 4-7-8, and deep calm techniques with a visual timer. Calm anxiety instantly.

Sauna Timer — Session Tracker

Track sauna sessions with timed rounds, cool-down periods, and wellness zone feedback. No app needed.

Kegel Exercise Timer

Guided pelvic floor exercise timer with hold and release cycles, audio cues, and daily streak tracking.

Sleep Quality Test

Rate your sleep quality with 12 questions. Get a score and personalized improvement tips.

Phone Addiction Test

Check your phone addiction level with 15 questions. Get digital detox tips and a 7-day challenge.

Dopamine Detox Planner

Create a personalized dopamine detox plan. Choose stimulants to remove and healthy replacements.

Habit Streak Calculator

Track habit streaks with a visual calendar. See current streak, longest streak, and milestones.

Mental Age Test

Discover your mental age with 20 fun questions about habits and thinking patterns. Shareable results.

Love Language Quiz

Find your primary love language with this 20-question quiz based on the 5 Love Languages framework.

36 Questions to Fall in Love

Use the 36 questions to fall in love list from Arthur Aron in a card-by-card format with a 4-minute eye contact timer.

Couples Compatibility Test

Take this viral couples quiz with your partner. 20 questions across 5 categories with instant compatibility results.

Attachment Style Quiz

Discover your attachment style — secure, anxious, avoidant, or fearful-avoidant. 20 questions, private.

EQ Test — Emotional Intelligence

Measure your emotional intelligence across 5 domains. Get your EQ score with actionable improvement tips.

Toxic Relationship Quiz

Check for red flags in your relationship. 15 questions to identify unhealthy patterns. Confidential.

Eye Exercise Timer

Guided eye exercises with visual timers. 20-20-20 rule, eye circles, near-far focus, and palming.

Color Blind Test (Ishihara)

Test your color vision with 12 canvas-generated Ishihara-style plates. Detects red, green, and blue deficiencies.

Visual Acuity Test (Eye Chart)

Test your vision with a digital Snellen chart. Screen calibration, test each eye, get approximate acuity.

Astigmatism Test

Check for astigmatism with starburst pattern and clock dial tests. Detect blurry or uneven lines.

Contrast Sensitivity Test

Test how well you see low-contrast details. 10 levels from high contrast to nearly invisible.

Dry Eye Symptom Test

Answer 12 questions about eye comfort. Get severity score and personalized dry eye recommendations.

Screen Distance Checker

Check screen distance with webcam or calculate ideal monitor distance by screen size. Ergonomic tips included.

Blue Light Exposure Calculator

Calculate daily blue light exposure from phone, laptop, tablet, and TV. Get personalized protection tips.

White Noise Generator

Generate white, pink, and brown noise for sleep and focus. Volume control, timer, waveform visualization.

Rain & Nature Sounds for Sleep

Mix 10 ambient sound channels — rain, thunder, ocean, forest, fireplace, coffee shop, and noise generators. Sleep timer with fade-out.

Eisenhower Matrix

Organize tasks by urgency and importance with the 2x2 priority matrix. Drag, drop, save, and export.

Deep Work Calculator

Calculate your available deep work hours and get an optimized daily schedule based on Cal Newport's framework.

Attention Span Test

Test your focus with 5 interactive challenges: counting, memory, patterns, tracking, and comprehension.

Flow State Quiz

Discover how often you reach flow state. 15 questions based on Csikszentmihalyi's flow theory.

Study Session Planner

Create optimized study schedules with spaced repetition. Enter subjects, difficulty, and get a daily plan.

Time Blocking Planner

Plan your day with visual time blocks. Assign every hour a purpose, save locally, and export as text.

Energy Level Tracker

Log hourly energy levels to find your peak productivity time. Visual chart shows your daily pattern.

Recovery Readiness Calculator

Check if your body is ready to train today. Score 8 recovery factors and get training recommendations.

Smoking Recovery Timeline

See how your body heals after quitting smoking. Visual timeline from 20 minutes to 15 years with milestones.

Quit Smoking Savings Calculator

See how much money you save by quitting smoking. Daily, monthly, yearly, and 10-year savings with investment projections.

Nicotine Withdrawal Tracker

Track nicotine withdrawal symptoms day by day. See when cravings peak, what to expect, and coping strategies for each stage.

Cigarette Cost Calculator

Calculate the true cost of your smoking habit. See daily, monthly, yearly, and lifetime costs with shock stats and comparisons.

Digital Detox Challenge

Take the 7-day progressive digital detox challenge. Daily missions with progress tracking.

Reaction Time Test

Test your reflexes with 5 rounds. Get your average reaction time, rating, and shareable results.

Ovulation Calculator

Calculate your ovulation date and fertile window based on cycle length. Visualize your full cycle with period, fertile, and ovulation days.

Blood Type Compatibility Checker

Check blood type compatibility for transfusion and donation. See who you can give to and receive from based on ABO and Rh types.

TDEE Calculator

Calculate your Total Daily Energy Expenditure. Find maintenance, weight loss, and gain calories using the Mifflin-St Jeor equation.

Pregnancy Week Calculator

Find your current pregnancy week, trimester, due date, and baby development milestones. Based on last period date.

Childhood Trauma Test (ACE)

28-question assessment across 7 trauma categories. Visual percentage breakdown with insights and coping strategies. 100% private.

Free IQ Test

30-question IQ test across 5 cognitive domains: patterns, logic, math, memory, spatial. Instant score with percentile and category breakdown.

Couples Compatibility Test

Both partners answer 20 questions. Compare results across 5 categories with visual compatibility percentage. Are you soulmates?

36 Questions to Fall in Love

Use the 36 questions to fall in love list in 3 sets to build closeness with a partner or close friend.

Down Syndrome Risk Calculator

Estimate Down syndrome risk by maternal age using published population data. Evidence-based probability with gestational timing adjustment.

Autism Screening Test (AQ-10)

Take the free AQ-10 autism screening test. 10 validated questions, instant score, 100% private.

Autism Signs by Age Checker

Check age-appropriate autism signs from infancy to adulthood. Evidence-based checklist, 100% private.

Sensory Diet Planner

Create a personalized sensory diet plan with activities for sensory-seeking and sensory-avoiding profiles.

Autism Meltdown Tracker

Track meltdowns and shutdowns with triggers, intensity, and coping strategies. Find patterns over time.

Down Syndrome Milestones Chart

Interactive developmental milestone tracker for Down syndrome with typical ranges and personal progress tracking.

Body Fat Calculator

Calculate your body fat percentage free using Navy, BMI, and RFM methods. Instant results with health risk assessment.

Body Type Calculator

Discover your body type — ectomorph, mesomorph, or endomorph. Get personalized exercise and diet tips.

GLP-1 Weight Loss Calculator

Estimate weight loss on Ozempic, Wegovy, Mounjaro, or Zepbound. Week-by-week projection based on clinical data.

GLP-1 Eligibility Checker

Check if you may qualify for Ozempic, Wegovy, Mounjaro, or Zepbound based on FDA guidelines. Private screening.

Weight Loss Calculator

Calculate how long to reach your goal weight with weekly targets, calorie plan, and visual timeline.

Intermittent Fasting Calculator

Plan your fasting schedule with calorie and protein targets. Supports 16:8, 18:6, OMAD, and 5:2 protocols.

Glycemic Load Calculator

Calculate the glycemic load of any food from its glycemic index and carb content. Real blood sugar impact per serving.

Resting Metabolic Rate Calculator

Calculate your RMR — calories burned at rest — using the Mifflin-St Jeor equation. Get TDEE and fat loss / maintenance targets.

Protein Intake Calculator

Calculate daily protein needs based on weight, goals, and activity level. Supports all diet types.

GLP-1 Cost Comparison Calculator

Compare GLP-1 medication costs — Ozempic, Wegovy, Mounjaro, Zepbound. Monthly estimates with and without insurance.

Waist to Hip Ratio Calculator

Calculate WHR with health risk assessment. WHO-recommended metric — more accurate than BMI alone.

Lean Body Mass Calculator

Calculate lean body mass using Boer, James, and Hume formulas. Track muscle vs fat composition.

Obesity Risk Score Calculator

Comprehensive obesity risk assessment using BMI, waist, WHR, lifestyle, and family history. 0-100 score.

Menstrual Cycle Tracker

Track your menstrual cycle privately. Predict next period, fertile window, and cycle phases. No account needed.

Postpartum Depression Screening

Take the validated Edinburgh Postnatal Depression Scale (EPDS). 10 questions scored privately in your browser.

Pregnancy Weight Gain Calculator

Calculate healthy pregnancy weight gain by week based on BMI. IOM guidelines for singles and twins.

Fertility Window Calculator

Calculate your 6-day fertility window with daily conception probability. Color-coded cycle calendar view.

A1C Calculator

Convert between A1C and average blood sugar (eAG) instantly. Track diabetes management with free, private results.

Blood Pressure Log

Track and log blood pressure readings over time. View trends, averages, and categories. Free and private.

Cholesterol Ratio Calculator

Calculate your cholesterol ratio and heart disease risk instantly. Enter total, HDL, and LDL cholesterol values.

Kidney Health Risk Calculator

Calculate your eGFR kidney function score from creatinine levels. Check CKD stage, risk assessment, and when to see a doctor.

Sleep Debt Calculator

Calculate your accumulated sleep debt and recovery plan. Enter your sleep hours to find how much sleep you owe.

Nutrition Label Generator

Generate FDA-style nutrition facts labels from any recipe. Enter ingredients, get a complete nutrition panel using USDA data. Free and private.

Food Additive E-Number Checker

Look up any E-number or food additive name. Get risk rating, health concerns, and halal/vegan status instantly. 200+ additives covered.

Food Barcode Nutrition Scanner

Scan any food barcode to see nutrition facts, Nutri-Score, ingredients, and allergens. Camera or manual entry — no app needed.

Recipe Finder by Ingredient

Find recipes using ingredients you already have. Enter what's in your fridge and discover free recipes instantly — no signup, private.

VO2 Max Calculator

Estimate your VO2 max from running, cycling, or walking test data. Get your cardio fitness level and age-based percentile ranking.

Target Heart Rate Calculator

Calculate target heart rate zones for fat burn, cardio, and HIIT. Supports Karvonen and age-based formulas.

Keto Macro Calculator

Calculate your ideal keto macros for fat, protein, and carbs. Get personalized daily targets based on your goals and activity level.

Blood Sugar Converter

Convert blood sugar levels between mg/dL and mmol/L. See if your glucose reading is normal, pre-diabetic, or diabetic range.

PCOS Symptom Checker

Screen for PCOS symptoms based on Rotterdam criteria. Answer questions about your cycle, skin, and hair to assess risk level.

Kidney Health Risk Calculator

Calculate your eGFR kidney function score from creatinine levels. Check your CKD stage and kidney health risk assessment.

Body Recomposition Calculator

Calculate calorie and macro targets for body recomp. Get training day and rest day nutrition plans.

Steps to Calories Calculator

Convert your daily steps to calories burned, distance walked, and time spent. Personalized by weight.

Bulking & Cutting Calculator

Calculate calorie and macro targets for bulking or cutting phases. Get personalized nutrition plans.

Child Growth Percentile Calculator

Check your child's height and weight percentile free and private. Uses WHO growth standards for ages 0-5 and returns percentile band with pl...

Creatinine Clearance Calculator

Calculate creatinine clearance with the Cockcroft-Gault formula free and private. Enter age, weight, sex, and serum creatinine to estimate k...

Ozempic Dose Calculator

Plan your semaglutide titration schedule free and private. See weeks 1-20 dose steps from 0.25 mg to the 2.4 mg maintenance dose with refill...

VO2 Max Estimator

Estimate VO2 max free and private using the Rockport 1-mile walk test or Cooper 12-minute run formula. See your fitness category and trainin...