Do I need a converter/adapter for Colombia, Brazil?

I'm going on a trip from the U.S. to Colombia, Brazil and maybe Argentina. Would I need converter or adapter for my phone charger?

Voltage in the U.S. is about 110 to 120 Volts, with a type A plug. Check the plate on your phone charger for its voltage range, especially the maximum value. When you travel, if the voltage is within range, you will only need a plug adapter. If not, you will need a step-down transformer, which is much more expensive and bulky, to step down from the 220-Volt range to the 110 Volt range.

Colombia is 110 Volts, type A plug, same as the U.S.

In Brazil there is no standard voltage and they use type A, B, C, and I plugs. Most states use 127 V electricity (Acre, Amap谩, Amazonas, Esp铆rito Santo, Mato Grosso do Sul, Maranh茫o, Par谩, Paran谩, Rond么nia, Roraima, Sergipe and Minas Gerais) so you just need a plug adapter. Other 鈥?mainly northeastern 鈥?states are on 220 V (Alagoas, Bras铆lia, Cear谩, Mato Grosso, Goi谩s, Para铆ba, Rio Grande do Norte, Santa Catarina and Tocantins). Although in most parts of the states of Bahia, S茫o Paulo, Rio de Janeiro and Rio Grande do Sul 127 V is used, the cities of Santos, Jequi茅, Jundia铆, S茫o Bernardo do Campo, Novo Friburgo, Bag茅, Caxias do Sul and Pelotas run on 220 V. The states of Pernambuco and Piau铆 use 220 V, except for the cities of Paulista and Teresina (127 V).

Argentina is 220 Volts, type C & I plugs.

See the link below...