Age Calculator

Age calculation with Japanese era, zodiac, Chinese zodiac, and school year.

広告スペース 1

How to use

  1. Enter your birth date.
  2. Optionally set a reference date.
  3. Click the calculate button.
  4. Review the detailed age information.

About this tool

The Age Calculator produces a rich summary from any birth date, including full age in years, months, and days, Japanese era notation, Western and Chinese zodiac, and the corresponding Japanese school year. You can also compute age as of any past or future date.

Features

Multi-format output, kazoedoshi support, zodiac and Chinese zodiac lookup, school year calculation, and a flexible reference date picker. The interface is fast and mobile friendly.

Use cases

Useful for filling out Japanese forms that require era dates, preparing gift ideas based on zodiac signs, checking eligibility thresholds, or building family trees where you need ages at historical moments.

Why this tool

Japanese contexts often demand more than a simple age number. The calculator covers every common format in one view, saving you from juggling multiple charts or conversion pages.

広告スペース 2

FAQ

What information is shown?
Age in years, months, and days, Japanese era, zodiac sign, Chinese zodiac, and school year are displayed.
Can I calculate age at a past date?
Yes, set the reference date to any point in time.
Does it follow Japanese age counting?
Yes, both full age and traditional Japanese kazoedoshi are shown.