From Guam to Sri Lanka
When travelling from Guam to Sri Lanka: None of your Guam plug types fit in Sri Lanka. You will need a travel adapter. Voltage is different (110V → 230V). Check your charger label; if it doesn’t list 230V you’ll also need a voltage converter. Frequency differs (60Hz → 50Hz). Modern phone and laptop chargers are usually fine, but some clocks, motors, and appliances may behave incorrectly.
Guam
Sri LankaYour plugs
Type A
No fit
Type B
No fit
Accepted in Sri Lanka
Type G
0 of 2 plug type(s) match
You: A, B • Sri Lanka: G
No fit for: A, B
Voltage: 110V → 230V
Different voltage
You may need a voltage converter.
Frequency: 60Hz → 50Hz
Different frequency
Check device supports both 50/60 Hz.
You will need an adapter and likely a converterAdapters you may need
Your plug shape does not fully match. Voltage differs; check for 100–240V support.
About electricity in Sri Lanka
Sri Lanka uses 230V/50Hz with Type G sockets, the British three-pin standard.
Grid & history
Sri Lanka relies on hydropower from the central hill country, plus coal (Norochcholai) and oil. The 2022 economic crisis caused severe load-shedding; supply has improved but remains tight.
Availability
Reliable in Colombo and tourist areas. Occasional scheduled outages during dry seasons.
Sockets & hotels
Type G is the modern standard. Some older buildings still have Type D. Bring a universal adapter for older guesthouses.
Energy mix
Hydropower is the largest single source.
Practical tips
- A Type G adapter is essential for any non-UK plug.
- A power bank is useful during dry-season outages.
Frequently asked questions
- Will my Guam plug work in Sri Lanka?
- No. None of your Guam plugs (Type A, Type B) fit in Sri Lanka sockets (Type G), so you will need a travel adapter.
- What plug type does Sri Lanka use?
- Sri Lanka uses Type G. The supply is 230V at 50Hz.
- Do I need a voltage converter for Sri Lanka when travelling from Guam?
- Sri Lanka runs on 230V, while Guam uses 110V. Check your charger label for a 100 to 240V rating; if it does not list 230V you will also need a voltage converter.
- Is the electrical frequency in Sri Lanka the same as Guam?
- Frequency in Sri Lanka is 50Hz, while Guam uses 60Hz. Modern phone and laptop chargers handle either, but clocks, motors, and some heating appliances may behave incorrectly.