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 the United Kingdom. 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 | |
|---|---|---|---|
| United Kingdom | 230V | 50Hz | G |
| Japan (for comparison) | 100V | 50 / 60Hz | A, B |
Bring an adapter: The United Kingdom uses type G (per the IEC list). The list does not include Japan's type A β bring a plug adapter (G).
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 G 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): G.
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): G.
PR π Get ready for United Kingdom (Japanese online store)
The Cotswolds, distilleries on Skye and Lundy Island. Itineraries, from London and Cornwall to Cardiff, Edinburgh and the Highlands.
Lonely Planet Great Britain (16th edition) (Kindle edition) (Amazon.co.jp) Β· About Kindle guidebooks
| "INPUT" on the product | Result |
|---|---|
| INPUT 100-240V | Voltage: The United Kingdom uses 230V. Within the label (100β240V) β no transformer needed |
| INPUT 100V only | Voltage: The United Kingdom uses 230V. Outside the label (100V) β do not use it as is. Use a product that supports the voltage in the United Kingdom, 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, the UK has its own rules for what you bring in when you arrive. Only the points most relevant to travelers arriving in Great Britain (England, Scotland and Wales) from Japan are listed here (Northern Ireland has different rules).
Tap an item to see the rule.
Meat and dairy products
Personal imports of meat and dairy products from most non-EU countries are not allowed (they will be seized by customs)
Banned items
Controlled drugs, offensive weapons such as flick knives, self-defense sprays such as pepper spray and CS gas, endangered animal and plant species, rough diamonds, and indecent and obscene materials such as books, magazines, films and DVDs are seized by customs
Alcohol
Beer and cider 42 liters and wine (still or sparkling) 18 liters, plus 4 liters of spirits and other alcoholic products over 22% ABV, or 9 liters of alcoholic products up to 22% ABV (such as fortified wine like port and sherry; not beer, cider or wine) duty-free (the last allowance can be split)
Tobacco
One of the following duty-free: 200 cigarettes, 100 cigarillos, 50 cigars, 250 g tobacco, or 200 sticks for electronic heated tobacco devices (the allowance can be split). There are no alcohol, tobacco or vaping allowances under 17 (you can bring them for your own use if you declare them)
Vaping products
Up to 50 ml of vaping liquid duty-free. If you go over, you pay tax and duty on all of it, not just the amount over the allowance
Other goods
Up to Β£390 in total duty-free. If you go over, you pay tax and duty on the total value, not just the amount over the allowance. You cannot combine your allowance with anyone else's
Cash
Declare cash of Β£10,000 or more to UK customs when carrying it in or out. Families or groups carrying Β£10,000 or more in total must also declare, even if individuals carry less. You can declare from 72 hours before you travel
Declare goods over your allowances and banned or restricted goods before crossing the UK border; you can declare online from 5 days (120 hours) before you arrive. If you break the rules, your goods and any vehicle used to transport them may be seized, and you may be fined or prosecuted (GOV.UK).
Rules can change, so check the latest information on GOV.UK before you go. For the duty-free allowance when you return to Japan, see Duty-free allowance when returning to Japan.
Sources (2)
Source: GOV.UK: "Bringing goods into the UK for personal use" (no update date shown) (retrieved 2026-10-03)
Source: GOV.UK: "Take cash in and out of the UK" (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.