How to calculate age from date of birth manually?

To manually calculate age, subtract the birth year from the current year. Adjust for months and days if the birthday hasn't occurred yet this year.

Mother’s Lunar Age & Pregnancy Calculator | Easy Age Calculator

Mother’s Lunar Age & Pregnancy Calculator

Accurate due date and gestational age, plus true astronomical lunar age.

Mother’s date of birth

Use Gregorian date (e.g., 1998-03-17).

Pregnancy mode

LMP (first day of last period)

Average cycle length (days)

Default is 28. Adjust if yours is different.

For-fun extras

Enter your details to see results.

This tool provides educational information and is not a substitute for professional medical advice.

Pregnancy accuracy

EDD from LMP adds 280 days (adjusted by your cycle length). EDD from conception adds 266 days. Gestational age from LMP or conception + 14 days.

Lunar precision

Astronomical lunar age uses the mean synodic month (29.530588 days) and lunar year (≈354.367 days) for real lunar cycles.

For-fun module

Chinese gender prediction is cultural and not medical; disabled by default and shown only if enabled.

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