In order to measure a kitchen faucet head, you will need to take the following measurements:
-The width of the base of the faucet (where it meets the countertop)
-The height of the spout
-The distance from the center of the base to the end of the spout
-The diameter of the aerator hole.
These four measurements will give you all of the information that you need in order to purchase a replacement kitchen faucet head.