1 However, most cucumbers found in the grocery store should cost less than $0.30 to $0.75 each. 2  According to KayCircle.com, cucumber costs are going to be anywhere from as little as $0.30 to as much as $1 per cucumber.3  Many people state that cucumbers from Asian countries are much cheaper than western cucumbers. According to KayCircle.com, cucumber costs are going to be anywhere from as little as $0.30 to as much as $1 per cucumber. 2  Many people state that cucumbers from Asian countries are much cheaper than western cucumbers.