Prometheus - Multiple average HTTP request rate over a given period

Question

I have an HTTP API for which I need to find:

1. Average number of requests per second during the last N days
2. Average number of requests per hour during the last N days
3. Average number of requests per day during the last N days

Is rate(http_requests_total[Nd]) the right and best answer to 1? And if so, for 2 and 3, is it enough to multiple by 60x60 and 60x60x24,respectively?

Answer 1

is it enough to multiple by 60x60 and 60x60x24,respectively?

Yes, using rate and then multiplying is the way to do this.