In Castries, they use Type G power plugs and outlets. The voltage is 240V, and the frequency is 50Hz.
⚠️ So, you’ll need a travel adapter in Castries. Their plugs and outlets are different from the Type A and B ones we use back in the States.
Quick Overview of the Plugs in Castries:
- Plug type in Castries: G
- Standard voltage: 240V
- Frequency: 50Hz
- Need a travel adapter? Yes, you do need a travel adapter
- Need a voltage converter? Could be needed, depending on the model
- Recommended plug adapter: One Beat Travel Plug Adapter
All information is gathered from official sources like local power authorities, IEC standards, and firsthand traveler experiences to ensure accuracy.
Power Outlets in Castries
In Castries, they use Type G power plugs and outlets.
Type G

Type G outlets have three rectangular prongs in a triangular layout and built-in fuses. Other plug types won’t fit without an adapter.
The Only Travel Adapter You’ll Need in Castries
A bad travel adapter can ruin your trip. We don’t sell them, but we’ve researched the best one for Castries—checking voltage, outlet types, speed, and safety. This one gets top marks:
Recommended Travel Plug Adapter
by 2,000+ travelers on Amazon
No power adapter and already abroad? You’ll likely be able to grab one at the airport or a shop nearby. Still, having your own from the start gives you more control and saves you the hassle of tracking one down after a long flight.
Castries is often combined with visits to Martinique, Saint Vincent and the Grenadines, or Barbados. Make sure your adapter is compatible for each stop.
Do You Need a Voltage Converter?
Planning a trip to Castries? The voltage there doesn’t match the 120V we use in the U.S., so you’ll probably need a voltage converter.
Always check the power specifications on your device before heading overseas. If it lists “100-240V, 50/60 Hz”, your device is safe to use internationally without needing a voltage converter. This applies to most phones, laptops, tablets, and personal care devices.

Which Travel Devices May Need a Converter?
Don’t want to guess which converter works? Here are the best-reviewed ones worth checking out.
| Device | Need Converter? | Notes |
|---|---|---|
| Phone | ❌ No (usually) | Most modern phone chargers are dual voltage (100–240V) |
| Laptop | ❌ No (usually) | Check the power brick label for 100–240V |
| Hairdryer | ✅ Yes (often) | High wattage; many models are not dual voltage |
| Electric toothbrush | ⚠️ Check voltage | Some models are 110V only |
| Camera / DSLR | ❌ No (usually) | Most chargers are dual voltage |
| Power bank | ❌ No | Charges via USB, adapter is enough |
| Electric shaver / trimmer | ⚠️ Check voltage | Older or cheaper models may not support 230V |
| Tablet / iPad | ❌ No | All models are dual voltage |
| Portable fan | ✅ Yes (sometimes) | Many models are not compatible with 230V |
| Game console | ⚠️ Check voltage | Newer consoles like PS5 and Xbox are often dual voltage — check to be sure |
| Bluetooth speaker | ❌ No (usually) | Charges via USB |
| E-reader (Kindle, etc.) | ❌ No | USB charging only, no converter needed |
