年龄精确计算 / 预产期计算
免费在线年龄计算器，精确到年月日小时；同时提供基于末次月经的预产期（EDD）计算与孕周展示
Usage & overall rating
Age
Due date
Birthday
YOUR JOURNEY SO FAR
30
years
0 months · 0 days · 0 hours · 0 min · 0 sec
Total days
10,957
Total hours
262,968
Total weeks
1,565
Nominal age
31
0days from now
Next birthday
Happy birthday! Today is yours.
2026-11-06 · 100%User Guide
✨ Features
• Precise age in years + months + days + hours • Total days / hours / weeks / nominal age / next birthday • EDD via Naegele's rule • Adjustable cycle length • Live updates, all local
📖 How to Use
Step 1
In Age tab, pick birthday and reference time
Step 2
In Due Date tab, pick last menstrual period and cycle length
Step 3
Cards show precise age / gestational age / EDD