Cycle & Hormones Calculators

Period tracking, hormone balance and PMS tools. All free, instant, no signup.

Period Tracker

Predict your next period and understand your current cycle phase.

Best workouts and nutrition for each phase of your menstrual cycle.

Estimate your total period blood loss and check for heavy bleeding.

Score PMS severity and screen for PMDD.

Calculate your luteal phase length and screen for luteal phase defect.

Score your hormonal balance based on energy, mood, sleep, and cycle.

Assess your risk of estrogen dominance from symptoms and lifestyle.

Score chronic cortisol load from sleep, stress, and exercise patterns.

Screen for hypo/hyperthyroid tendency based on symptoms.