Carpet I’ve chosen comes in 4 metres and 5 metres Primary bedroom would a 4.1 x 4 metre carpet do? Other bedroom 4.1 x 4 metre carpet ( lots of waste but it’ll do to put in bottom of cupboards) or 3 x 5 metre carpet Living room 5 x 5 metre or 4.6 x 5 metre carpet
Based on those sizes that’s fine but I wouldn’t go from estate agent sizes as I’ve never found them accurate. You could mix widths as although it will be a slightly different colour due to dye batch you’ve got the hall to separate them so unlikely to see the variance. Depends if you’re looking for good but with some cost saving or perfect really. Personally mixing widths/pile directions in this instance is worth it.
As Simon has said I wouldn’t go with those sizes but get them physically measured. Done a few jobs where customers have supplied their own carpets and the estate agents hadn’t measured into bays of windows etc so had to patch the carpets.
Inwould imagine They will all need to be 5m wide. You really need to have it check measured to allow for doorways
And bedroom looks like it has a door but no wall, primary bed misses the alcove where doors are, and all miss the doorways apart from bedroom that seem to include the landing/hall