Context
With $ 1.000.000,00 (an aguinaldo or accumulated savings) the rate you choose changes the result by several dollars.
For historical reference: a week ago $ 1.000.000,00 bought US$ 636,94; a month ago, US$ 651,47; over the last 30 days, between US$ 636,94 and US$ 653,59 (daily selling data from argentinadatos.com).
Keep in mind: Buying at the official rate has been open to individuals since 2025, but each bank has its own price and some charge a fee.
The other way around? Come in. official dollar a pesos.