Electricity & Electronics in Hawaii
Electrical Standards:
- Voltage: 120V AC (same as US mainland)
- Frequency: 60 Hz
- Plug Type: Type A (two flat parallel pins) and Type B (two flat parallel pins with round grounding pin)
Adapter Requirements:
No adapter needed if traveling from: United States, Canada, Mexico, most Caribbean nations, Japan (same voltage and plug type)
Adapter AND voltage converter required for: Europe, UK, Australia, New Zealand, Asia (except Japan), Africa, South America. Most modern electronics (phones, laptops, cameras) have built-in voltage converters (check device label for '100-240V'), so only plug adapter needed. Hair dryers, curling irons, and other heat-producing appliances typically need voltage converter if not dual-voltage.
Where to Buy Adapters:
- Before Arrival: Purchase multi-country travel adapter at home (cheaper and more selection)
- In Honolulu: ABC Stores (80+ locations in Waikiki), Target, Walmart, Best Buy, airport shops (most expensive option)
- Hotel Front Desk: Many hotels loan adapters to guests - ask at check-in
Device Charging:
- USB Charging: Widely available in hotels, cafés, restaurants, and public spaces. Bring your own USB cable and charging brick.
- Hotel Rooms: Standard US outlets throughout. Most modern hotels have built-in USB charging ports.
- Public Charging: Honolulu Airport offers charging stations. Some beaches and parks have outlets in pavilions (use at own risk).
Electronics Tips:
- Bring power strip/surge protector if traveling with multiple devices - hotel rooms typically have limited outlets
- Waterproof phone cases recommended for beach and water activities
- Portable battery packs essential for full-day excursions when outlets unavailable
- Most hotels offer safes for storing electronics and valuables
- Salt air can damage electronics - keep devices in protective cases when at beach