更了解自己的身體,從每天的小數據開始 — 免費追蹤經期、排卵、BMI、營養與每日健康
所有計算在瀏覽器本地完成 · 你的數據永不上傳
點擊任一工具開始,或使用下方標籤
Three simple steps — no account, no data upload
Pick a tool and type your LMP date, height & weight, or age.
Calculations run in your browser using standard medical formulas.
Save to local storage, share results, or download the offline app.
Bloom Health is a free multi-function women's health platform offering 6 tools: Period Tracker, BMI Calculator, Due Date Calculator, Daily Calories, Water Intake Tracker, and Ovulation Calculator. All calculations are based on authoritative medical formulas (Naegele's rule, Mifflin-St Jeor, WHO BMI classification) to help women better understand their bodies.
Key features: Multi-language support (简体中文, 繁體中文, English, 日本語, 한국어, Español, Français), Offline-capable Android APP, completely free with no login required, and privacy-first — all data stays in your browser.
Common questions about our women's health tools
Evidence-based women's health insights
Understanding your menstrual cycle is the foundation of women's health.
Read more → 💧The 30ml/kg guideline, signs of dehydration, and hydration tips.
Read more → ⚖️WHO vs Asian cutoffs, when BMI is misleading, better measures.
Read more → 🤰The 6-day fertile window and how to time intercourse for pregnancy.
Read more →All calculator tools on Bloom Health are based on publicly available medical formulas and are for general reference only. They do not constitute medical diagnosis or treatment advice.
Period prediction, ovulation calculation, and other results may vary due to individual physiological differences. BMI and calorie calculations are not applicable to pregnant women, breastfeeding mothers, or individuals with specific medical conditions.
For any health concerns, please consult a licensed physician or other qualified healthcare provider. See our full disclaimer.
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