A growing collection

Japan,
by the numbers.

Practical calculators and articles about Japan. Verified figures, written from Kanagawa.

01壱

For travelers

Plan smarter, spend less, and skip the small confusions.

01FEATURED

Japan trip budget

Daily costs by city and travel style, in USD, EUR, GBP, AUD, MXN.

5 currencies3 styles2026 data
予算
02寸

Clothing & shoe sizes (Japan ↔ EU/US)

Convert Japanese clothing, shoe and ring sizes to EU and US.

03車

Is the JR Pass worth it?

Enter your route. We tell you if the pass beats individual tickets.

04免

Tax-free shopping (5,000 ¥ rule)

See if your purchase clears the tax-free threshold and what you save.

05干

Japanese zodiac (eto)

Find your animal of the twelve earthly branches.

06時

Japan jet lag calculator

Flight time, time difference and a practical plan to adapt to Japan time fast.

07荷

Takuhaibin luggage forwarding cost

Estimate the cost of forwarding your luggage between hotels and cities in Japan.

08桜

Cherry blossom timing by city

Enter your travel dates and city. Find out if you'll catch the cherry blossom peak.

09紅

Autumn foliage timing by city (momiji)

Enter your travel dates and city. Find out if you'll catch peak autumn foliage (見頃, migoro) in Japan.

02弐

For residents

Tools for the paperwork, taxes and life-admin of living in Japan.

10FEATURED

Furusato nōzei (ふるさと納税) limit

How much you can donate this year and still get the full tax deduction.

¥2,000 net cost~10× return2026
納税
11令

Western ↔ Japanese era

Convert any year between Gregorian and Reiwa, Heisei, Showa, Taisho, Meiji.

12歳

Japanese age (kazoedoshi)

Your traditional Japanese age, used for kanreki and certain rituals.

13給

Japan net salary (gross → take-home)

Income tax, resident tax, pension, health insurance—done in one place.

14賃

Japan rent cost (move-in + total)

Reikin, shikikin, agency fees, kōshinryō—the real cost of renting in Japan.

15定

Monthly commuter pass — worth it?

Compare IC tickets vs monthly pass for Tokyo and Yokohama routes. 2026 fares.

16在

Japan visa fee calculator (Oct 2026 reform)

Calculate your renewal or permanent residency fee before and after the October 2026 reform.

17高

HSP points — fast-track to permanent residency

Calculate your Highly Skilled Professional points. See if you qualify for PR in 1 year (80 pts) or 3 years (70 pts).

03参

Recent articles

Plain-language pieces about life and travel in Japan, written from experience.