If you do need an eye exam,it is about $90 at Lenscrafters.I think Walmart is much cheaper which is around $70. Actually, there is no need to have an eye exam if you want to buy non prescription contacts. You can get them from any over-the-counter store or online without a prescription.
I think you don't need to have your eyes examined as you are ready to buy non prescription contacts.
Generally, eye exam costs can range from less than $50 (usually at a retail store or optical chain) to $100 or more (usually at a medical clinic or private eye doctor's office). Also, eye exams for contact lenses nearly always cost more than routine eye exams to update your eyeglasses prescription.