The exchange rate between the US dollar and the Mexican peso fluctuates daily, so it is important to keep an eye on the market to get the best possible rate. You can check the current exchange rate online or at a local currency exchange.
If you are planning to exchange a large amount of money, it may be worth it to shop around for the best exchange rate. Some banks and currency exchanges offer better rates than others, so it is important to compare rates before you make a decision.
You can also save money on currency exchange fees by using a credit card or debit card that does not charge foreign transaction fees. Some cards also offer rewards programs that can help you save even more money.