Hong Kong to Japan plug adapter: plugs and voltage compared
No. The Hong Kong Tourism Board describes three rectangular pins for Hong Kong. Japan's outlets take Type A plugs with two flat pins (JNTO), so bring a plug adapter to Type A. Japan runs on 100V and Hong Kong on 220V.
Plug adapter needed
Hong Kong and Japan side by side
Hong Kong: 220V and 50Hz. Japan: 100V, 50Hz in the east and 60Hz in the west.
| Japan | Hong Kong | |
|---|---|---|
| Voltage | 100V JNTO | 220V HKSAR Government |
| Frequency | 50Hz east, 60Hz west JNTO | 50Hz HKSAR Government |
| Plug | Type A, two flat pinsPanasonic lists Type A and B JNTO | Three rectangular pins Hong Kong Tourism Board |
Who says what about electricity in Hong Kong
| Source | What it states | Kind |
|---|---|---|
| HKSAR GovernmentHong Kong: The Facts, power and gas supplies | Voltage: 220V; frequency: 50Hz Source | Government |
| Electrical and Mechanical Services Department (EMSD)Electricity Classroom | Voltage: 220V Source | Government |
| Electrical and Mechanical Services Department (EMSD)Guidance notes, Electrical Products (Safety) Regulation | Plug: 3-pin, BS 1363 Part 1 / BS 546 Source | Government |
| Hong Kong Tourism BoardTraveller essentials | Voltage: 220V; frequency: 50Hz; plug: three-square-pronged plug Source | Tourism board |
What to pack in Hong Kong for Japan
Three rectangular pins from Hong Kong need a Type A adapter in Japan.
- Three rectangular pins: a plug adapter to Type A. Source: Hong Kong Tourism Board.
- Each device from Hong Kong: read INPUT. 100-240V covers Japan's 100V; 220V alone needs a voltage converter (JNTO).
- Hong Kong: 50Hz. Tokyo: 50Hz. Osaka: 60Hz. A 50/60Hz label covers all three.
Figure by japan-japan.com from JNTO: Plugs and Electricity.
What official pages in Hong Kong say
4 statements from the Hong Kong Tourism Board, the HKSAR Government and the Electrical and Mechanical Services Department (EMSD).
Visitors from Hong Kong in 2025
Hong Kong ranked 5th among countries and regions, with 2,517,399 visitors to Japan in 2025 (JNTO, final figures).
- Visitors in 2025
- 2,517,399
- Rank
- 5th
- Share of all visitors
- 5.9%
- Change from 2024
- -6.2%
Frequently asked questions
Do I need a plug adapter in Japan from Hong Kong?
No. The Hong Kong Tourism Board describes three rectangular pins for Hong Kong. Japan's outlets take Type A plugs with two flat pins (JNTO), so bring a plug adapter to Type A.
Is Japan's voltage the same as Hong Kong's?
No. Japan uses 100V (JNTO); Hong Kong uses 220V, according to the HKSAR Government.
Do I need a voltage converter in Japan from Hong Kong?
Only for devices rated for 220V alone that are not dual-voltage (JNTO). A charger from Hong Kong marked 100-240V needs none.
Related items
Official page: Hong Kong Tourism Board
Sources for this page
- HKSAR Government Hong Kong: The Facts, power and gas supplieschecked October 3, 2026
- Electrical and Mechanical Services Department (EMSD) Electricity Classroomchecked October 3, 2026
- Electrical and Mechanical Services Department (EMSD) Guidance notes, Electrical Products (Safety) Regulationchecked October 3, 2026
- Hong Kong Tourism Board Traveller essentialschecked October 3, 2026
- Japan National Tourism Organization (JNTO) Plugs & Electricitychecked October 3, 2026
- Japan National Tourism Organization (JNTO) FAQ: basic informationchecked October 3, 2026
- Japan National Tourism Organization (JNTO) Visitor arrivals by nationality and month, 2025 final figureschecked October 3, 2026
Compiled by Japan Japan !! · Updated October 3, 2026