About FEM Society
FEM Society is a free women’s health resource built around one simple idea: every woman deserves access to clear, evidence-based health information — instantly, privately, and without cost.
We provide 110+ free calculators and tools covering every stage of a woman’s life — from fertility tracking and pregnancy planning to menopause management, financial independence, career growth, and mental wellness.
What We Do
- Fertility & TTC — Ovulation calculators, AMH level interpreters, IVF success estimators, fertile window predictors, and more
- Pregnancy — Due date calculators, trimester timelines, kick counters, contraction timers
- Menopause & Hormones — Perimenopause symptom checkers, HRT risk-benefit assessors, hormone balance scores
- Money & Career — Freelance rate calculators, salary negotiation tools, pay gap calculators, investment projectors
- Mental Wellness — Burnout risk scores, anxiety screeners, breathing guides, boundary strength assessors
- Body & Wellness — Calorie calculators, sleep debt trackers, heart rate zone calculators, VO₂ max estimators
Our Principles
🔒 Always Free
Every calculator on FEM Society is free, forever. We are funded by display advertising, not subscriptions or data selling.
⚡ Instant & Private
All calculations happen directly in your browser. No data is sent to our servers. No account required. No tracking of personal health inputs.
🔬 Evidence-Based
Our calculators are built on published clinical research, WHO guidelines, NHS recommendations, and peer-reviewed medical literature. We cite our methodology where possible.
⚠️ Educational Only
Our tools are for educational and informational purposes only. They are never a substitute for a consultation with a qualified medical professional, financial adviser, or legal expert.
Contact Us
Have a question, spotted an error in one of our calculators, or want to suggest a new tool? We’d love to hear from you.
FEM Society is an independent women’s health resource. We are not affiliated with any healthcare provider, pharmaceutical company, or financial institution.