A pregnancy week calculator converts between gestational age (weeks from last menstrual period) and calendar dates to determine due dates, trimester boundaries, and developmental milestones. The estimated due date is 40 weeks (280 days) from the last menstrual period; only 5% of babies are born on their exact due date.
Difficulty:beginner
References
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100% 無料
登録不要
✓
正確
検証済み数式
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即座
即座に結果を表示
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モバイル対応
全デバイス対応