Japan to Ireland: Complete Plug & Adapter Guide (2026) Adapter Needed

Getting ready for your journey from Japan to Ireland? Electrical compatibility is easy to overlook, but bringing the wrong plug or forgetting an adapter can leave you scrambling at your hotel. Here's what you need to know.

Japan uses Type A and B plugs, while Ireland uses Type G. Since there is no overlap, you will need a travel adapter to plug in your devices. Make sure to pick one up before your trip or at the airport.

Be aware that Japan runs on 100V at 50Hz/60Hz, while Ireland uses 230V at 50Hz. This voltage difference matters for appliances like hair dryers, curling irons, and electric shavers that aren't dual-voltage. Check the label on your devices. If it says "100-240V," you're fine. Otherwise, you'll need a voltage converter.

When packing for Ireland, bring at least one adapter per room if you're traveling with others. Airport shops often sell them at a markup, so ordering one online beforehand saves money. A small power strip from home can also multiply a single adapter into several outlets.