Plugs & voltage in the Philippines
Types A, B and C · 220 V · 60 Hz
It pairs 220 V with 60 Hz, a combination shared only by Peru, Saudi Arabia and South Korea; in South-eastern Asia all others use 50 Hz. Sockets here take plugs from countries on the other voltage range, so a plug that fits is no sign the supply matches. It is the only country in South-eastern Asia with this plug set; the most common set there is G (3 of 9 others).
Do I need an adapter for the Philippines?
Where are you travelling from?
Plugs fit, but the voltage is different.
220 V here, 120 V at home.
Bring an adapter to Types A, B or C.
Bring an adapter to Types A, B or C.
Type C plugs fit; Type E/F plugs need an adapter to Types A, B or C.
Bring an adapter to Types A, B or C.
Bring an adapter to Types A, B or C.
Type A plugs fit; Type I plugs need an adapter to Types A, B or C.
Bring an adapter to Types A, B or C.
Type C plugs fit; Types D and M plugs need an adapter to Types A, B or C.
Plugs fit, but the voltage is different.
220 V here, 100 V at home.
From the Philippines to anywhere · Any country to the Philippines
The power supply
Also in the data
Sources give different nominal figures here: Wikidata lists 220 V, the Wikipedia country table 230 V. This page uses the Wikidata figure; both are in the 220–240 V range, so the adapter and voltage answers do not change.
Same plugs as the Philippines
1 other country uses exactly A/B/C: 1 in the Americas.
The plug types used here
Guides: When the plug fits but the voltage doesn’t · Countries with several plug types, ranked
Source: Wikidata Q928; regions: UN M49 (South-eastern Asia). Sources & method