In Chiang Mai, they use Type A, B, C, and O plugs and sockets. The mains voltage is 220 V, and the frequency is 50 Hz.
So, you’ll definitely need a travel adaptor in Chiang Mai. Their plugs and sockets aren’t the same as our Type G back in the UK.
Key Takeaways
- Plugs and sockets: A, B, C, and O
- Mains voltage: 220 V
- Frequency: 50 Hz
- Travel adaptor needed? Yes, you do need a travel adaptor
- Voltage converter needed? No, you won’t need a power converter here.
- Recommended travel adaptor: AUNNO Universal Travel Adaptor
The details provided here come directly from local electricity authorities, international standards such as the IEC, and practical feedback shared by travellers across the globe.
Recommended Travel Adaptor for Chiang Mai
We’ve taken the time to research and test these adaptors ourselves, making sure safety, charging performance and quality all meet the mark.
Forgotten your adaptor and already abroad? Don’t worry — airports and local shops usually stock them. That said, packing your own saves you from high prices and poor quality.
Chiang Mai is usually part of a longer trip through Southeast Asia, often combined with Laos and Myanmar. It’s a good idea to check those plug types before you go — they’re not all the same.
Sockets in Chiang Mai
The plug types you’ll find in Chiang Mai are Type A, B, C, and O plugs and sockets.
Type A
Type A sockets have two flat parallel pins and no grounding. Unlike Type G, they don’t include an earth pin, which makes them less secure.
Type B
Type B sockets have two flat parallel pins plus a round grounding pin. Unlike Type G, the pins are thinner and there’s no built-in fuse.
Type C
Type C sockets have two round pins and no grounding. Unlike Type G, they take a slimmer plug without an earth pin or fuse.
Type O
Type O sockets have two round pins and an additional grounding pin. UK Type G plugs do not fit into Type O sockets.
Do You Need a Voltage Converter?
Voltage converters are only necessary if there’s a mismatch. In Chiang Mai the mains supply is more or less the same as in the UK, so you’re fine.
Before charging abroad, glance at the mains label: ‘100–240 V, 50/60 Hz’ confirms it’ll run safely without a converter.
Top Travel Essentials to Take With You
Every trip feels smoother with a few clever extras. No more guessing your suitcase weight with a luggage scale, no more dead phone on the train with a power bank, and no more messy bag thanks to packing cubes. They’re small additions, but they make a big difference.
