Free Japanese Calculators & Converters

Frequently Asked Questions

• How do I fill in my birth date on a Japanese government form?
  Japanese official forms (住民票, visa applications, medical records) often require dates in era format — for example, Reiwa 7 rather than 2025. Use the Era Date Converter to translate any Western date to its Japanese era equivalent instantly. The current era is Reiwa (令和), which began May 1, 2019.
• Does the price tag in Japan include consumption tax?
  Since April 2021, Japanese law requires all displayed prices to be tax-inclusive (税込). Japan's standard consumption tax is 10%, with a reduced 8% rate for food, non-alcoholic takeout beverages, and certain newspapers. If unsure, use the consumption tax calculator to quickly check any price.
• How much take-home pay does a foreigner earn in Japan?
  Foreign residents pay the same taxes as Japanese nationals: income tax, resident tax, and social insurance. At ¥5,000,000 annual salary, take-home is approximately ¥320,000 per month — around 77% of gross. Use the salary calculator to estimate take-home at any income level.
• Are Japanese shops closed on public holidays?
  Convenience stores and major shopping malls typically stay open 365 days. Government offices, post offices, and banks close on Japan's 16 national public holidays. Golden Week (late April–early May) and New Year (Jan 1–3) are particularly disruptive. Use the holiday checker to verify any specific date.
• What clothing size am I in Japan?
  Japan uses its own sizing system. Women's sizes run roughly 2 sizes smaller than US (US 8 ≈ Japanese 13). Men's clothing uses numeric sizing based on measurements. Shoe sizes generally use EU/cm measurements. Use the measurement converter to find your Japanese size instantly.