iPhone showing wrong internal storage

Greg is right. If you were to delete everything off the device including the Operating system then it would maybe be at 32gb but the os has to go somewhere and they are not going to add storage just because they took away storage for the OS. You are almost never going to get 32gb of data on a 32gb device. I bought a 16gb flash drive and I couldn't use (for reasons unknown to me) the last 500mb even though they were showing available.

you do not actually get 32GB.. a few reasons and the industry does not use base 10 math, this is not apple, this is everyone

when you connect to itunes you will see at the top about 28GB of space available.. this is expected

The capacity prior to iOS 11 on the 32GB iphone would show as 29GB and not 32GB.. Now it is showing the imaginary 32GB (or 16,256) nothing is wrong with your phone other than it being full

https://www.quora.com/Why-is-the-space-in-a-32-GB-pen-drive-only-29-GB

seller calculates 1gb as 1000x1000x1000 (base 10)

therefore the number of bytes in it is 32,000,000,000 bytes total

BUT windows calculates 1gb as 1024x1024x1024 (base 2)

so to windows 32gb= 34,359,738,368 bytes

and 32,000,000,000 divided by 1024x1024x1024= 29.8023223877 Gb

make a full backup using your iTunes computer then restore from the backup. If that does not work restore to factory settings and set up as new.

do the restore and it should fix it.

It happens. Everything we are trying is free.