Find your fertile window, estimate your due date, check drug interactions, and identify pills — private on your device, no account required.
Ovulation, pregnancy due dates, anxiety, meds — the tools people search for most. Private on your phone, easy to use with a doctor.
When are you most fertile? Find your window in seconds — stays on your device
PregnancyPregnant? Get your due date and trimester timeline from your last period
Mental health2-minute GAD-7 screen — helpful whether you're 18 or 68
SleepFind your ideal bedtime based on 90-minute sleep cycles
MedsSave your med list, share results — prescriptions, OTC, supplements
MedsIdentify unknown pills by imprint — live preview & RxNorm verified
FitnessYour number and what it means — clear, no judgment
Trying to conceive or already pregnant? Calculate your fertile window, due date, and fertility outlook — free, private, no account.
Find your fertile window and best days to conceive — private, no account
PregnancyCalculate your pregnancy due date from your last period — week-by-week timeline
FertilityEstimate conception odds by age and cycle — when to talk to a specialist
Fast access to our most-used health calculators
Find your fertile window and ovulation day
Pregnancy due date from last menstrual period
Check 230+ medications for dangerous interactions
Look up pills by imprint, color, and shape
Check if your BP is normal, elevated, or high
Calculate body mass index and weight category
10-year ASCVD heart attack & stroke risk
Analyze LDL, HDL & cardiovascular risk
Find optimal bedtime based on sleep cycles
Mealtime doses & blood sugar corrections
Free screening for anxiety & panic symptoms
Live U.S. flu activity map by state
Private symptom assessment — not a diagnosis
Body, mind, meds, sleep — free tools that respect your privacy
Calculate your Body Mass Index and get comprehensive body composition analysis with health recommendations.
Validated GAD-7 anxiety test — private, no account. Know if your stress is everyday worry or worth a conversation with someone.
Fertile window, ovulation day, and cycle timing.
Due date, trimester, and week-by-week timeline.
Daily caloric needs and weight management.
How much is too much — and when it'll wreck your sleep.
What time to go to bed so you wake up without feeling dead.
Mixing meds or supplements? Check before you combine.
Found a loose pill? Search by imprint with live preview.
Clinical guides on bodies, wellness, and when to seek care.
Four jobs people actually search for — with guides that support the tools, not filler pages.
Estimate ovulation day and best days to conceive from your cycle length.
Open ovulation toolDue date from last period plus trimester and week-by-week milestones.
Open due date toolScreen prescriptions, OTC drugs, and supplements for known risks.
Check interactionsDeep dives on high-risk pairs, pregnancy meds, and how to check safely.
Read safety guidesAt Health Tools Hub, we believe everyone deserves access to professional-grade health insights. Through real-time calculations and intelligent analysis, we help you understand your health metrics better than ever. With cutting-edge technology and medically accurate algorithms tailored to give you the health insights you deserve.
All health calculations based on established medical guidelines and peer-reviewed research
Simple, intuitive interfaces designed for users of all technical backgrounds
No hidden fees, subscriptions, or registration required. Health tools for everyone
Developed in partnership with medical professionals and health experts