From Guam to Cuba
When travelling from Guam to Cuba: Good news: all your Guam plug types fit in Cuba. Voltage is different (110V → 120V). Check your charger label; if it doesn’t list 120V you’ll also need a voltage converter. Frequency is the same at 60Hz.
Guam
CubaYour plugs
Type A
Fits
Type B
Fits
Accepted in Cuba
Type A
Type B
2 of 2 plug type(s) match
You: A, B • Cuba: A, B
Voltage: 110V → 120V
Different voltage
You may need a voltage converter.
Frequency: 60Hz → 60Hz
Same frequency
Plugs fit, but voltage differsAdapters you may need
Voltage differs; check for 100–240V support.
About electricity in Cuba
Cuba uses 120V/60Hz with Type A and B sockets, broadly North American compatible.
Grid & history
Cuba’s grid is in chronic crisis, aging Soviet-era oil-fired plants, fuel shortages, and limited investment have caused multi-hour scheduled outages nationwide. Tourist hotels usually have generator backup.
Availability
Very unreliable nationwide. Tourist hotels almost always have generators.
Sockets & hotels
Officially Type A/B at 120V, but some older buildings still have 220V sockets (from the Soviet era). Verify before plugging in.
Energy mix
Practical tips
- US plugs fit modern Cuban sockets directly.
- Bring a high-capacity power bank, outages are routine.
- Older buildings may still have 220V Type C sockets in places. Verify voltage first.
Frequently asked questions
- Will my Guam plug work in Cuba?
- Yes. Every Guam plug type (Type A, Type B) fits in Cuba sockets without an adapter.
- What plug type does Cuba use?
- Cuba uses Type A, Type B. The supply is 120V at 60Hz.
- Do I need a voltage converter for Cuba when travelling from Guam?
- Cuba runs on 120V, while Guam uses 110V. Check your charger label for a 100 to 240V rating; if it does not list 120V you will also need a voltage converter.
- Is the electrical frequency in Cuba the same as Guam?
- Frequency in Cuba is 60Hz, the same as Guam.