Google Translate API Requests Limit

Question

I know the Google Translate API has a limit of 5,000 characters per request, but how many requests are allowed under a certain period of time?

Answer 1

With the (paid) google translate API v2, one can set different quotas, like a Per-User Limit, which throttles the maximum number of characters a user can send for translation / second. You can set this as low as you want, i.e. 10.0 characters/second/user.

Remark There is no more free google translate API: V1 was shut down on Dec. 1, 2011, and for V2 you have to pay. See: Google language APIs

Answer 2

It seems to be 100,000.

Though this can be increased. (Refer discussion in the link)