Most Popular Mental Health & Sleep Calculators
Insomnia Severity Index Calculator
Free ISI calculator with the full 7-item insomnia severity index scoring online. Get your ISI score, severity band, per-question breakdown, and sleep tips.
PHQ-2 Calculator
Free PHQ-2 calculator and depression screening assessment tool. Answer 2 questions, get your PHQ-2 score (0-6), and see if you need the full PHQ-9 follow-up.
Sleep Score Calculator
Use our Sleep Score Calculator to combine duration, efficiency, latency, and awakenings into one number. Compare to age benchmarks and get tips to improve.
Screen Time Calculator
Use the screen time calculator to total daily and weekly use, set limits, and schedule breaks to improve focus. Gentle reminders help you stay on track.
Circadian Rhythm Calculator
Use the Circadian Rhythm Calculator to identify your chronotype and align sleep and wake times. See optimal windows, plan meals, and get blue-light tips.
Anxiety Calculator (GAD-7)
Use our anxiety calculator to score the validated GAD-7 and understand your anxiety severity. Get clear results and practical next steps you can try today.
All Mental Health & Sleep Calculators
Anxiety Calculator (GAD-7)
Use our anxiety calculator to score the validated GAD-7 and understand your anxiety severity. Get clear results and practical next steps you can try today.
Bedtime Calculator
Enter your wake time and the bedtime calculator suggests bedtimes by 90-minute cycles. Add a fall-asleep buffer and choose 12/24-hour time for better mornings.
Circadian Rhythm Calculator
Use the Circadian Rhythm Calculator to identify your chronotype and align sleep and wake times. See optimal windows, plan meals, and get blue-light tips.
Depression Calculator (PHQ-9)
Use our depression calculator to score the PHQ-9 in minutes. Answer nine questions about the last two weeks to estimate symptom severity and get clear guidance.
GAD-2 Calculator
Use our GAD-2 calculator to screen for anxiety in under a minute. Answer two questions, get a 0–6 score, and see if a full GAD-7 follow-up is recommended.
Happiness Calculator
Use the Happiness Calculator to estimate satisfaction and positivity, turning insights into habits. The Happiness Calculator tracks your index and offers tips.
Insomnia Severity Index Calculator
Free ISI calculator with the full 7-item insomnia severity index scoring online. Get your ISI score, severity band, per-question breakdown, and sleep tips.
Jet Lag Calculator
Use our jet lag calculator to build a pre‑trip sleep‑shift plan and post‑arrival light schedule. Enter time zones and travel times to get a day‑by‑day guide.
Meditation Timer Calculator
Build a consistent practice with the meditation timer calculator. Set session length, warm‑up, and interval bells; track streaks and add notes after each sit.
Mental Age Calculator
Use our mental age calculator to estimate mental maturity in minutes. Answer 12 quick questions for an instant mental age with clear interpretation and tips.
Mental Health Calculator (PHQ-4)
Use our mental health calculator to complete the PHQ-4 quickly. See a total distress score, anxiety and depression subscores, severity bands, and next steps.
Mindfulness Calculator
Use the mindfulness calculator to set a goal, log mindful minutes, and track your focus‑relaxation balance. Generate simple prompts to build a steady habit.
Mood Calculator
The Mood Calculator helps you log feelings, spot patterns, and improve balance. Track daily entries, view trends, and turn insights into simple habits.
Nap Calculator
Use our nap calculator to find the best nap length and wake‑up time. Pick a 20‑minute power nap or a 90‑minute cycle to avoid grogginess and wake refreshed.
PHQ-2 Calculator
Free PHQ-2 calculator and depression screening assessment tool. Answer 2 questions, get your PHQ-2 score (0-6), and see if you need the full PHQ-9 follow-up.
REM Sleep Calculator
Use the rem sleep calculator to plan lighter wake‑ups by targeting likely REM windows. Adjust cycle length and buffer for better bedtimes or wake‑up times.
Screen Time Calculator
Use the screen time calculator to total daily and weekly use, set limits, and schedule breaks to improve focus. Gentle reminders help you stay on track.
Sleep Apnea Risk Calculator
Screen your obstructive sleep apnea risk. This sleep apnea risk calculator reviews symptoms like snoring, sleepiness, and observed pauses in breathing.
Sleep Calculator
Use our sleep calculator to find the best bedtimes or wake times using 90‑minute cycles plus a 15‑minute fall‑asleep buffer. Simple, private, and free.
Sleep Cycle Calculator
Use our sleep cycle calculator to plan bedtimes and wake-ups by 90-minute cycles and a fall-asleep buffer. Wake smoother with simple, mobile suggestions.
Sleep Debt Calculator
Use the sleep debt calculator to total your weekly shortfall and get a practical recovery plan. Enter daily sleep, set your sleep need, and see how to catch up.
Sleep Efficiency Calculator
Use our sleep efficiency calculator to compare time in bed with time actually asleep and get your efficiency percentage. See simple tips and track trends.
Sleep Latency Calculator
Free sleep latency calculator to measure how long you take to fall asleep, compare your onset time against clinical norms, and learn how to fall asleep faster.
Sleep Score Calculator
Use our Sleep Score Calculator to combine duration, efficiency, latency, and awakenings into one number. Compare to age benchmarks and get tips to improve.
Snoring Calculator
Use our snoring calculator to get a quick STOP‑Bang sleep apnea risk score, track snoring frequency and loudness, and see tailored tips and triggers. Private.
Sobriety Calculator
Enter your sobriety date and let the sobriety calculator track days and milestone badges. Celebrate progress and stay motivated with gentle reminders.
Stress Calculator
Use our stress calculator to measure your stress level today, spot likely triggers, and get simple coping ideas you can try right now—private and free.
Wake Up Time Calculator
Use our wake up time calculator to plan ideal wake times with 90‑minute sleep cycles. Enter a bedtime or wake time, add a fall‑asleep buffer for simple results.
Wellness Calculator
Use our wellness calculator to get a simple lifestyle score from sleep, activity, nutrition, and daily habits. See clear tips and set small goals you can track.
Total Tools
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Why Use Our Mental Health & Sleep Calculators?
Our mental health and sleep calculator collection includes 29 evidence-based screening tools for assessing insomnia severity, depression risk (PHQ-2 and PHQ-9), anxiety levels, sleep quality scores, screen time impact, and circadian rhythm optimization. Each tool uses validated clinical questionnaires and scoring systems recognized by the American Psychiatric Association and sleep research organizations.
Who Are These Calculators For?
Anyone concerned about sleep quality, stress levels, or mental wellness. Clinicians use our PHQ-2 and insomnia severity index tools as quick screening instruments, while individuals use the sleep score and circadian rhythm calculators to understand and improve their rest patterns.
How Our Calculators Work
Answer standardized questionnaire items or enter your sleep schedule data. The calculators apply validated scoring algorithms — such as the Insomnia Severity Index (ISI) or PHQ-2 depression screener — to generate a score with clinical interpretation. Results include severity categories and general guidance.
Key Benefits
- Medical-grade accuracy based on WHO and CDC guidelines
- Instant results with detailed explanations and recommendations
- 100% private — all calculations run locally in your browser
- No registration, no personal data collected
Frequently Asked Questions
What is the Insomnia Severity Index (ISI)?
How does the PHQ-2 depression screener work?
How much sleep do adults need per night?
Can screen time affect sleep quality?
What is a circadian rhythm and why does it matter?
Explore More Health Calculators
Discover our complete collection of 304 health calculators across 9 categories