How many pesos is this worth today?

That's not any Mexican centavos coin but an obsolete $1000 pesos coin struck from 1988 to 1992 and listed under the Standard Catalog of World Coins as KM#536. It's made of an alloy of aluminium and bronze, and depicts Sor Juana(also known as Juana de Asbaje) who was a nun and scholar in the 17th century, while the coat-of-arms of Mexico is featured on the other side. The coin has a minimum collector value of US$2.25 in uncirculated condition, down to $1.25 in grade nice circulated with sharp details and luster, and $0.85 in average circulated condition. As said, this $1000 pesos is an obsolete coin and not at par with the current Mexican money. In 1993, Mexico revalued its Peso, introduced the Nuevo Peso, and removed the last two zeros from all its old peso currency.

1 centavo is 1/100th of a peso. I don't know how many centavos that was-I'm guessing that was 20 centavos. So about 1/5 of a peso (less than 4 American cents!)

The exchange rate changes daily. It also depends on where you trade dollars for pesos. Cambies pay a little less than going to a bank, which usually has the best rate. If you are using travelers checks, are cashing them at a bank, you will need a passport for ID. Last visit(11/06) about 10.8 pesos to the dollar.

It is worth 100 pesos♥