Comparisons of equality (tan... como, tanto... como)

As [Adjective] As

To express that two things have the exact same quality (like being "as fast as" someone else), use tan + adjective or adverb + como.

The word tan is invariable, meaning it never changes form, regardless of the gender or number of the people or things you are comparing.

The runner is as fast as the athlete.
El corredor es tan rápido como el atleta.
The runners are not as agile as the athletes.
Los corredores no son tan ágiles como los atletas.

As Much / As Many As

When you want to compare quantities (like "as many trophies as" or "as much time as"), use tanto + noun + como.

Because tanto describes a noun here, it has four forms and must match the gender and number of the noun that immediately follows it: tanto, tanta, tantos, or tantas.

This tournament has as many games as the championship.
Este torneo tiene tantos partidos como el campeonato.
Our team used to win as many medals as the other one.
Nuestro equipo ganaba tantas medallas como el otro.

Notice how tantos matches the masculine plural partidos (games) and tantas matches the feminine plural medallas (medals).

We have as many trophies as the runners.
Nosotros tenemos tantos trofeos como los corredores.