Amounts are in yen.
Estimate 2026 take-home pay in Japan after health insurance (all 47 prefecture rates), long-term care, the child support levy, pension, employment insurance, income tax and resident tax.
Monthly payments and total interest on a Japanese home loan, equal payments or equal principal, plus variable vs fixed (Flat 35), danshin insurance, the 2026 tax credit and the 5-year/125% rules.
Take-home from a Japanese retirement allowance after the retirement income deduction, the 1/2 rule, income tax and 10% resident tax, with short-service, officer and 20.42% withholding rules.
Itemize the cost of renting in Japan: shikikin deposit, reikin key money, agent fee plus tax, prorated and advance rent, guarantor fee, fire insurance and lock change, with a rent-to-income guide.
Full age, traditional kazoedoshi, eto zodiac, Japanese era birth year and April-start school grade from a date of birth, plus age milestones for pensions, long-term care and elderly medical care.
Count the days left until a target date (D-day) and find milestones such as 100 days, 200 days, 1,000 days and yearly anniversaries from the day you met or were born.
Calculate the days, weeks and months between two dates, and the date a given number of days before or after a date. Handy for contract periods, service periods and deadlines.