Well I can, but this is where people will argue what counts as "Europe." Wikipedia maintains a list specifically titled "List of School Shootings in Europe".

Using the same metrics as the US number (1999-current) the total number of European school shootings is 88, if not for 2024 the US and Europe would be pretty close between 1999 and 2023 (US 131 vs Europe 84).

For the other statistics the "What is Europe" becomes an even bigger problem and also the way schools are structured in Europe gets fiddly. Europe much more prefers a higher quantity of small schools while the US seems to prefer concentrating more students in less schools. So Europe has ~1.47 million primary education schools and 79k secondary education schools for ~70 million students vs the US with 130k schools for ~50 million students.

So, Europe has 40% more students, ~10x more schools, and ~25% as many school shootings. If we don't count 2024 then Europe would have 64% as many school shootings as the US. One of the biggest holdups for making the data comparable is adjusting the European number of schools to match US schools or vice versa. If Europe had school distributions similar to the US the EU would have ~182,000 schools (70mil/x=50 mil/130000) and if the US had schools distributed similarly to Europe the US would have ~1.11 million schools (70 mil/1.54 mil=70mil/x).

When the number of schools is adjusted for differences in school structure European students have an annual average chance of a school shooting of 0.00185% (0.00184% not counting 2024) (88 shootings/26 years/182000 adjusted schools) or a 0.03% chance of ever having a school shooting ((1-(1-0.0000185)^12)). The US on the other hand would have an annual average chance of a school shooting 0.01369% (0.00403% not counting 2024) (463 shootings/26 years/130000 actual schools) or about 0.2% chance of ever having a school shooting ((1-(1-0.0001369)^12)).

Before anyone points out that my previous math showed 4% I'll remind you that that was only using 2024 data, not all 26 years.

So when you actually look and adjust for Europe fundamentally having 10x more schools for 40% more students the incidence of school shootings over the last 26 years haven't been that different. In the US it is about 7.4x more likely that a school will experience a shooting per year than in Europe, when adjusting the quantity of schools, but the % chance is already so incredibly low it doesn't really increase the chance that a given student will ever experience a school shooting.

It is worth noting that Europe does have 10x more schools, and so when a school shooting does occur less people are in the school to be exposed to the shooting, but not taking it into account is an apples and oranges comparison.

EDIT: Just to quickly bring it back to my original argument, the difference between Europe and the US isn't really how often a student will experience a school shooting, but rather the attitudes toward such events. Europe seems to grieve, find justice for those hurt, learn from mistakes, and move on with what works. On the other hand, in the US the parents grieve, someone sues, the school system looks for someone to blame, and the only thing learned is how to avoid a lawsuit.

EDIT 2: Revisited to double check and fix some math and numbers, if I messed something up feel free to let me know.