βINPUTβ is printed on the label of the charger, AC adapter or the product itself. Plug drawings show the general shape only.
This is for traveling from Japan to South Korea. The data is the IEC list (as of June 2025). Some places or buildings may use other types, so treat it as a guide.
| Voltage | Frequency | Plug types | |
|---|---|---|---|
| South Korea | 220V | 60Hz | C, F |
| Japan (for comparison) | 100V | 50 / 60Hz | A, B |
Bring an adapter: South Korea uses types C, F (per the IEC list). The list does not include Japan's type A β bring a plug adapter (C, F).
Source: IEC (International Electrotechnical Commission) World Plugs country list (as of June 2025). The IEC no longer publishes this list, so a copy is kept on this site (retrieved 2026-09-27)
PR Example plug adapter (Japanese online stores)
For the C, F sockets here (voltage is not converted)
supports plugs A, B, BF, B3, C, SE, O, O2 and CB (the store's names), rated 6A 250V. It cannot convert voltage and cannot be used in Japan, the page says. Plug types at your destination that differ from Japan's (IEC list): C, F.
supports types A, O, BF, C and SE (the store's names), 100-240V. It does not convert voltage and cannot be used in Japan, the page says. Plug types at your destination that differ from Japan's (IEC list): C, F.
| "INPUT" on the product | Result |
|---|---|
| INPUT 100-240V | Voltage: South Korea uses 220V. Within the label (100β240V) β no transformer needed |
| INPUT 100V only | Voltage: South Korea uses 220V. Outside the label (100V) β do not use it as is. Use a product that supports the voltage in South Korea, or use a transformer (check the transformer's manual for which products and wattage it supports) |
Check the "INPUT" label on the charger, AC adapter or the product itself. For hair dryers and irons, see Taking a hair dryer or hair iron abroad; for plug shapes, see How to tell plug types A to N apart.
Source: IEC (International Electrotechnical Commission) World Plugs country list (as of June 2025). The IEC no longer publishes this list, so a copy is kept on this site (retrieved 2026-09-27)
Apart from what you can take on the plane, South Korea has its own rules for what you bring in when you arrive. Only the points most relevant to travelers are listed here.
Tap an item to see the rule.
Meat, dairy and egg products, fruit, vegetables, etc.
Animals and animal products (meat, dairy and egg products, etc.), seafood, and plants and plant products (fruit, vegetables, seeds, herbal medicine materials, etc.) are inspected at the airport. Some of them cannot be brought in, and bringing them in without inspection can lead to a fine.
The Korea Customs Service page lists animals (including meat), plants, fruit, vegetables, agricultural, forestry, livestock and fishery products (including processed ones) and foods as items to declare
Alcohol
Up to 2 liters in total and US$400 in total are duty-free, separately from the US$800 below. No alcohol allowance under 19 (counted by year of birth)
Cigarettes and e-cigarette liquid
200 filter cigarettes and 20 ml of e-cigarette nicotine liquid (under 1% nicotine) are duty-free, separately from the US$800. No tobacco allowance under 19
Perfume
Up to 100 ml (3.4 oz) duty-free, separately from the US$800
Other purchases
Duty-free up to US$800 in total (agricultural, forestry, livestock and fishery products: 5 kg per item, 40 kg in total, and within 100,000 won of overseas purchase price). Declare anything over this.
If you declare it yourself, the customs duty is reduced by 30%; if you are caught without declaring, an additional tax of 40% of the tax due is charged (60% for two or more times within two years)
Cash, etc.
If you carry won, foreign currency, checks and the like totaling more than the equivalent of US$10,000, submit a declaration to customs and receive a foreign exchange declaration (confirmation) certificate
Counterfeit money, pornography, etc.
Pornography and counterfeit money, bonds and similar securities cannot be brought in. Firearms, narcotics, CITES-listed plants and animals and their products, cultural properties and the like cannot clear customs unless conditions such as permits are met.
The Korea Customs Service page also lists goods that infringe trademarks and other intellectual property rights (such as counterfeit brand goods) as items to declare
False declarations can be punished under the Customs Act. Rules can change, so check the latest information from the Korea Customs Service and other authorities before you go. For the duty-free allowance when you return to Japan, see Duty-free allowance when returning to Japan.
Sources (2)
Source: Ministry of Foreign Affairs of Japan, Overseas Safety website: "Republic of Korea: basic safety information", section on visas and immigration (last updated July 9, 2025) [in Japanese] (retrieved 2026-09-28)
Source: Korea Customs Service: "Customs clearance of travelers' personal effects" [in Korean] (no update date shown) (retrieved 2026-09-28)
Handy to have before you go
PR Example travel bottles (Japanese online stores)
For liquids in the cabin on international flights: containers of 100ml or less
capacity 60ml, 1 bottle, polyethylene and polypropylene.
a set of 5 bottles; choose from 30ml, 50ml or 100ml.