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Pregnancy Calculator
Calculate pregnancy due date, gestational age, and conception date using multiple methods
最后更新:
预产期计算器
选择计算方法 and input relevant 信息 to 计算 预产期 and 孕龄
重要说明
超声精确度
第一孕期 ultrasound is the most accurate method for determining 孕龄, with only ±3-5 天 margin of error.
医学咨询
This 计算器 is for 参考 only. All pregnancy 管理 should be conducted under professional medical guidance.
相关工具
Dr. Lisa WangMD, FACOG
Obstetrics & Maternal-Fetal Medicine
最后审核: 2025-09-30
此信息仅供教育目的,不应替代专业医疗建议。如需做出医疗决定,请务必咨询合格的医疗保健提供者。
Privacy Notice
Your pregnancy data is processed locally and never stored on our servers.