On Sunday, September 30, 2018, the price of the dollar in Mexico was quoted at an average of: 1 Dollar = 18.5532 Pesos BUY18.1168 SELL18.9896 -0.0900 %-0.0173Dollar Price in Mexican Banks BUYSELL18.0519.0518.1019.1017.6518.7518.284318.684317.5518.9518.0019.1017.3019.1118.1519.0018.4818.9518.4519.0017.5518.9518.3619.3617.6019.1418.2019.20