Number of Sectors

[Trevor]

I want to display the number of sectors that exist on a particular disk
partition.  I know I can do so using the command:   

          #   fdisk  -l   /dev/<partition-device-name>

For example:  #  fdisk  -l   /dev/sda1

Is there any other (one line) command that will display the number
of sectors of a disk partition?

Note:  This is a query for the RHCSA-level audience