Although the size of a cob of corn can vary slightly, depending upon variables such as variety and maturity, ears are usually around the same size. Therefore, the answer to how much corn is on a cob can also vary, but is probably much more than you might think. One average size ear of corn yields about 3/4 of a cup of corn on average, but the answer to how much corn on a cob can range from 1/2 cup to 1 full cup of corn, possibly even more if you are consuming corn cob ears from somewhere such as the county fair.
If you are consuming 2 to 3 ears of corn at one sitting, like many people do, and think you’re getting a serving of corn; you are sadly mistaken. You are getting far more than one serving… in fact, you are probably getting a serving that amounts to more than a full days worth of the recommended serving of starchy vegetables according to the USDA! 
How to Remove Corn from the Cob
Related to how much corn is on the cob, is how to get corn off the cob.
It’s easy if you do it right, here’s how to get corn off the cob:
- Stand the ear of corn upright (large flat end down) on a cutting board.
- Using a serrated knife gently saw down from the top, allowing the kernels to fall onto the board.
- Turn slightly & repeat.
To find out how long to boil corn, check out our page on boiling times for corn.