Quartz countertops typically cost between $67 and $93 per square foot as of 2015, so multiplying these numbers by the size of the countertop leads to a rough estimate. However, there are a number of additional factors that affect pricing.
Manufacturers make quartz countertops by combining quartz stones with small amounts of epoxy glue to keep the pieces together. As a result, manufacturers have varying formulations that provide different traits, making some brands more expensive than others. In addition, quartz countertop costs vary depending on how long labor takes. Shipping a countertop a long distance adds to the price as well.