🌙 Cycle & Hormones Calculators
We offer 9 clinical-backed calculators and tools for cycle & hormones.
Period Tracker
Hormone Balance Score
Cycle Syncing Workout Guide
Period Flow Volume Tracker
PMS Symptom Tracker
Luteal Phase Calculator
Estrogen Dominance Score
Cortisol Stress Index
Thyroid Function Estimator
About Cycle & Hormones
How to Use Cycle & Hormones Calculators
Enter your cycle data above. For the most accurate results, track actual data over 3+ consecutive cycles rather than using averages. Hormone levels fluctuate significantly day-to-day — this tool provides population-based estimates, not a clinical diagnosis.
Hormonal Health Care in the USA
Hormonal health concerns are frequently undertreated in the USA. A full hormone panel (FSH, LH, estradiol, progesterone, testosterone, TSH, AMH) costs $200–$800 without insurance; most are covered when medically indicated under major insurance plans. PCOS affects 1 in 10 US women of reproductive age — diagnosis requires an OB-GYN or reproductive endocrinologist evaluation. Thyroid disease affects 20 million Americans; women are 5–8× more likely to develop thyroid conditions than men.
When to Consult a Professional
See your OB-GYN or primary care provider if: your cycles are consistently shorter than 21 days or longer than 35 days, you experience 3+ months without a period (amenorrhea), you have significant PMS/PMDD symptoms that interfere with daily life, or you have symptoms of thyroid dysfunction. For PCOS, endometriosis, or PMDD, request a referral to a reproductive endocrinologist or gynecologic specialist.
Our Commitment to Quality & E-E-A-T
At FEM Society, we believe that access to reliable health and lifestyle tools is a fundamental right. All of our calculators are designed with the utmost care, drawing on peer-reviewed research, clinical guidelines, and financial best practices. By providing clear educational guides alongside our calculators, we aim to bridge the gap between complex science and daily wellness planning.
100% Secure & Private Operations
We take your privacy seriously. Standard fitness and fertility tracker applications often collect and monetize intimate personal details. In contrast, FEM Society operates with absolute local privacy. Every calculation is performed directly in your browser's local sandbox using JavaScript. No parameters, dates, or values are ever transmitted to our servers or third-party databases, ensuring your personal health data remains 100% confidential.
How to Get the Most Out of Our Tools
For the highest degree of accuracy, we recommend using precise measurements from recent laboratory tests, doctor visits, or bank statements rather than general estimates. For tracking long-term trends (such as menstrual cycle fluctuations or financial growth patterns), consider maintaining a secure personal journal or spreadsheet of your inputs and outputs over time.