Unofficial estimate from Japan Post's published rate tables, not affiliated with Japan Post. Prices, surcharges and acceptance by country can change; confirm at the post office before you ship. Full disclaimer
500 g to United States: cheapest now Small packet, air ¥1,670; from 2027-02-01 Small packet, air ¥2,330. Biggest rise: EMS (express mail) +¥3,500 (89.7%).
Nothing is sent anywhere. Weights round up to the next price band.
United States · Zone 4 · 500 g
500 g to United States: cheapest now Small packet, air ¥1,670; from 2027-02-01 Small packet, air ¥2,330. Biggest rise: EMS (express mail) +¥3,500 (89.7%).
Service
Now (to Jan 31, 2027)
From Feb 1, 2027
Change
EMS (express mail)EMS(国際スピード郵便) · tracked
¥3,900
¥7,400
+¥3,500 (89.7%)
International parcel, air国際小包(航空便) · tracked
¥4,200
¥6,660
+¥2,460 (58.6%)
International parcel, SAL (economy air)国際小包(SAL便) · tracked · suspendedSuspended (not accepted).
¥2,900
¥5,660
+¥2,760 (95.2%)
International parcel, surface (ship)国際小包(船便) · tracked
¥2,600
¥3,400
+¥800 (30.8%)
Small packet, air小形包装物(航空便)
¥1,670
¥2,330
+¥660 (39.5%)
International Air Packet (tracked small packet)国際エアパケット · tracked
¥2,040
¥2,720
+¥680 (33.3%)
Cheapest by air (not ship)
Now: Small packet, air ¥1,670
Feb 2027: Small packet, air ¥2,330
Cheapest tracked
Now: International Air Packet (tracked small packet) ¥2,040
Feb 2027: International Air Packet (tracked small packet) ¥2,720
EMS weight band
From 2027-02-01 EMS is charged in 1 kg bands: 500 g pays the "up to 1 kg" price (now "up to 500 g").
Ship date 2026-10-24 is before 2027-02-01: current rates apply (post by 2027-01-31, 100 days away). Rates go by the posting date.
Current EMS and air-parcel prices to zones 3 and 4 include Japan Post's special surcharge (特別追加料金); it becomes ¥0 from 2027-02-01, already folded into the revised tables.
Japan Post has suspended SAL acceptance; its 2027 FAQ says the restart date is undecided (引受再開の時期は未定).
Japan Post may suspend or restrict services to a country; check 国・地域別の差出可否 before shipping: https://www.post.japanpost.jp/service/send/oversea/information/overview.html
Goods need a customs form (CN22/CN23 or the online label). Lithium batteries, sprays and other dangerous goods are restricted; the destination's import duties and de minimis rules are separate.
Unofficial estimate from Japan Post's published rate tables, not affiliated with Japan Post. Prices, surcharges and acceptance by country can change; confirm at the post office before you ship. Rates as of 2026-10-19: current tables (incl. the special surcharge) and the revised tables Japan Post published on 2026-10-09 for items posted from 2027-02-01. Customs, size limits and prohibited items are not checked.