Compatibility summary
Your Philippines plug may fit in Costa Rica outlets, as both use at least one common plug type. Voltage differs by more than 20% — a voltage converter may be needed for some appliances.
Plug comparison
Philippines plug types: A B C
Costa Rica plug types: A B
Both countries share at least one plug type (A B C and A B), so some plugs may work without an adapter. Check your appliance.
Voltage comparison
Philippines: 220V, 60Hz
Costa Rica: 120V, 60Hz
Voltage converter recommended (Philippines 220V vs Costa Rica 120V).