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 Singapore. 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 | |
|---|---|---|---|
| Singapore | 230V | 50Hz | C, G, M |
| Japan (for comparison) | 100V | 50 / 60Hz | A, B |
Bring an adapter: Singapore uses types C, G, M (per the IEC list). The list does not include Japan's type A β bring a plug adapter (C, G, M).
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, 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): C, G, M.
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, G, M.
PR π Get ready for Singapore (Japanese online store)
Gardens by the Bay, Fort Canning Park and more. Itineraries and detailed maps, from Marina Bay to Sentosa.
Lonely Planet Singapore (14th edition) (Kindle edition) (Amazon.co.jp) Β· About Kindle guidebooks
| "INPUT" on the product | Result |
|---|---|
| INPUT 100-240V | Voltage: Singapore uses 230V. Within the label (100β240V) β no transformer needed |
| INPUT 100V only | Voltage: Singapore uses 230V. Outside the label (100V) β do not use it as is. Use a product that supports the voltage in Singapore, 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, Singapore 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.
E-cigarettes and vapes (including components and e-liquid)
Not allowed (imitation tobacco products such as electronic cigarettes and vaporisers, their components, and solutions containing nicotine or tobacco for use with them cannot be imported). Since September 1, 2025, penalties for possessing, using or purchasing e-vaporisers have been higher
Chewing tobacco, snuff, shisha, etc.
Not allowed (cannot be imported)
Chewing gum
Not allowed (except oral dental and medicinal chewing gum approved by the Health Sciences Authority)
Cigarettes and other tobacco
There is no duty-free concession. Duty and GST apply when you bring them in (including cigarettes bought in Singapore with the SDPC mark). Tobacco that does not meet the Standardised Packaging requirements cannot be brought in and will be disposed of
Alcohol
If you are 18 or over, have been outside Singapore for at least 48 hours, are not arriving from Malaysia, and the liquor is for your own consumption, one of the following is duty-free: 1 L spirits + 1 L wine / 1 L spirits + 1 L beer / 1 L wine + 1 L beer / 2 L wine / 2 L beer.
Sake counts as wine and umeshu as spirits. You need a Customs permit to bring in more than 10 L
Purchases (new items, souvenirs, gifts, etc.)
For personal use, GST import relief is up to S$500 if you were outside Singapore for 48 hours or more, or up to S$100 if less than 48 hours (not for alcohol or tobacco). GST applies to the amount over this
Cash, etc.
You must declare cash and similar instruments if the total exceeds S$20,000 (or its equivalent in foreign currency) when entering or leaving. Submit an electronic declaration within 72 hours before entering or leaving, via the MyICA app or ICA's website
You must declare goods exceeding your duty-free concession and GST import relief, including goods carried for other people. Failure to declare at the Red Channel may result in fines or prosecution.
Rules can change, so check the latest information from Singapore Customs 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 (3)
Source: Singapore Customs: "Controlled and Prohibited Goods for Imports" (last updated February 24, 2026) (retrieved 2026-09-28)
Source: Health Sciences Authority (Singapore): "Multi-agency Enforcement Operations at Checkpoints" (press release, October 18, 2025) (retrieved 2026-09-28)
Source: Singapore Customs: "Duty-Free Concession and GST Import Relief" (last updated March 25, 2026) (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.