How many interviews? (First round on-campus)

As long as there is no problems with time, why the hell not? I might even prefer it since you will probably do better during the interviews later in the day than in the beginning.

if 2 hours worth of 1st rounds leaves you fatigued, you're in trouble when superday time comes around

unless there's a time conflict, don't cancel the interviews

1st rounds can be more fatiguing because you have to prep firm-specific answers for each interview. i found superdays to be less stressful than the 4 or 5 first-round interviews in a day. if you have 1st-round case interviews thrown in the mix, it's even worse. definitely doable, but just give yourself some breathing room throughout the day.

if you get "fatigued" by talking about yourself and the markets or banking for 6 hours, you should start working out or find a new career

Most of the banks that came to campus had interviews on the 1st available day. Think I had between 6 and 8 the first day. Long day

The most I've had is eight on-campus first rounds in one day. They varied in length from 30 mins to 1 hr.

What's the normal number of first round interviews total for someone who successfully gets an IBD internship? I know it probably varies from like 1 to 30, but what's a typical or average number?

4 is very doable assuming nothing else to do that day. i had midterms and interviews with moelis, greenhill, perella on the same day. not too fun, but mostly because of the midterms. the interviews aren't so hard. just talk about yourself and talk about banking. just repeat the same shit 3 times. final rounds for all.

Take this as an opportunity to get used to long and tiring superdays. I guess you guys in the US get off easy. Here is how long some of my recent assessment centres/superdays in London lasted:

Barcap: 7am - 5pm Lazard: 8am - 6pm HSBC: 8.30am - 2pm BAML: 8.30am - 4pm

But then again there were a few on the other side of the spectrum like Rothschild and Moelis who only had 1-2 hour long final rounds.

Yeah, I didn't mean it's an unbearable drag to interview all day long (I've done superdays before) - just that - if all you reasonably need for a solid summer offer is, say, 8 interviews in one week... then, if you're confident in your interview skills, why overload it? But message received: don't overthink it.

And I'm with you, ambition56, I generally enjoy interviews - just see no reason to do significantly more than necessary.

would be interested in these numbers as well

I've got 4 on our first day...I didn't want them to be back to back but otherwise I'm not too worried about the scheduling.

I have 4 on the first day, 5 on the second day, 3 on the third day. Not worried about it at all. I think the superdays will be a lot more exhausting as mentioned (especially if you have 2 in the same day).