Which containers fit in exactly the whole pack of weetabix/shreddies?

[GrumpySock]

I'd like to finally get rid of all the annoying cereal boxes in my cupboard but last time I tried buying some big containers they didn't fit in the whole pack so you end up with a few extras that you have to keep separately. So two packs instead of one and even less space and more mess 😬
First world problem I know but there must be some easy answer
Please!

This holds a pack of 12 Weetabix perfectly

@Redglitter thank you ok so it should be at least 4l for a bigger pack

I’d like to be organised but then keep having those almost empty bags of rice/sugar/flouras nothing fits in properly