Age & Life

Starting from a date of birth, these tools look up the milestones of a life and the customs that go with them. They calculate age and the Japanese counted age, check yakudoshi unlucky years and the kanreki and koki birthdays, chart the ages for school entry, graduation, and retirement, and work out graduation years for a résumé — plus memorial service dates such as the first and third anniversaries, when to send a mourning postcard, and the customary amounts for condolence money, return gifts, offerings, wedding gifts, and baby gifts.

Japan Age Calculator with Japanese Era (Wareki)

Free age calculator with a Japan twist: exact age in years, months, and days, plus Japanese era (Wareki) birth year and day of the week you were born.

Yakudoshi & Happosagari Checker

Enter your birth year and gender to check Japanese unlucky years (yakudoshi: pre-, main, post-, and great-unlucky) and happosagari. Covers up to 30 years ahead.

Japan School Age Calculator (Elementary, Middle, High School, Retirement by Birth Year)

Enter your birth year to calculate your exact age at each stage of Japan's education system: elementary school, middle school, high school, university, and retirement (6-3-3-4 system).

Japanese School Timeline Calculator (Enrollment & Graduation Years)

Enter a date of birth to instantly calculate the Japanese elementary, junior high, high school and university enrollment and graduation years, shown in both the Western and Japanese era calendars.

Japanese Longevity Milestones Calculator

Enter a birthdate to instantly calculate the year (Western and Japanese era) of each traditional Japanese longevity celebration: Kanreki (60), Koki (70), Kiju (77), Sanju (80), Beiju (88), Sotsuju (90) and Hakuju (99).

Japanese Buddhist Memorial Service Calculator (Isshuki, Sankaiki, Nanakaiki)

Enter a date of death to instantly calculate the dates of Shonanoka, Shijukunichi, Isshuki, Sankaiki, Nanakaiki and other Japanese Buddhist memorial services, up to Sanjusankaiki. Also shows the nearest preceding Sunday...

Mochu Hagaki Checker — Japanese Mourning Postcard Eligibility & Timing

Enter the date of death and your relationship to the deceased to instantly check whether a mochu hagaki (喪中はがき, Japanese New Year mourning notice) is customary, and whether to send it before the New Year or switch t...

Koden-Gaeshi Calculator (Funeral Return Gift Amount)

Enter the koden (condolence money) amount you received to instantly calculate the customary half-return (koden-gaeshi) amount, an item price range, and the recommended shipping deadline after kiake.

Buddhist Memorial Service Offering (Ofuse) Calculator

Select the type of Buddhist memorial service (49th-day, 1st anniversary, etc.) and the venue to instantly estimate the ofuse (monetary offering) for the priest, plus the gozenryou and okurumadai fees.

Condolence Money (Koden) Amount Calculator — Giving Side

Select your relationship to the deceased and your own age bracket to instantly see a general guideline for how much koden (condolence money) to give.

Wedding Gift Money (Goshugi) Amount Calculator — Giving Side

Select your relationship to the couple and your own age bracket to instantly see a general guideline for how much goshugi (wedding gift money) to give.

Childbirth Gift Money Amount Calculator — Giving Side

Select your relationship to the parent and your own age bracket to instantly see a general guideline for how much shussan-iwai (childbirth gift money) to give.