QUICK ANSWER
"As much as" is a phrase which is often translated as "tanto como", and "as many as" is a phrase which is often translated as "hasta". Learn more about the difference between "as much as" and "as many as" below.
as much as(
ahz
muhch
ahz
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (equally)
A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
a. por más que
As much as I love you, you made a huge mistake.Por más que te quiera, cometiste un grave error.
b. por mucho que
As much as I need a roommate, I wouldn't live with her.Por mucho que necesite una compañera de piso, no viviría con ella.
as many as(
ahz
meh
-
ni
ahz
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (up to)
a. hasta
I can eat as many as five doughnuts before I get sick.Puedo comer hasta cinco donas sin enfermarme.
a. tantos como
I speak a few languages, but I want to be able to speak as many as you.Hablo algunos idiomas, pero quiero poder hablar tantos como tú.