Compatibility summary
Your South Korea plug may fit in Brazil 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
South Korea plug types: C F
Brazil plug types: C N
Both countries share at least one plug type (C F and C N), so some plugs may work without an adapter. Check your appliance.
Voltage comparison
South Korea: 220V, 60Hz
Brazil: 127V, 60Hz
Voltage converter recommended (South Korea 220V vs Brazil 127V).