Block size of filesystem

[Trevor]

I have a disk (/dev/sda), that has two partitions (/dev/sda1 and /dev/sda2).
I was verifying the block size of 4096, of the first partition (/dev/sda1), using
the following commands:

# stat  -f  /dev/sda1

# fdisk  -l

Those commands provided that verification.  Are there any other commands
that I can use to provide me that same information (block size) for that 
first partition?

Thanks in advance for your contribution!