Kwolek had a deep appreciation for art and music, frequently attending concerts and visiting museums. She found these activities a source of relaxation and inspiration.

Kwolek enjoyed gardening and sewing in her spare time. She would make clothing, and tended to a small garden that she kept for her own enjoyment.

Stephanie Kwolek never married and had no children. She devoted her life to her scientific career and found fulfillment in her work and contributions to the field of chemistry. This allowed her to fully focus on her scientific pursuits.

Kwolek enjoyed mentoring young scientist and inspiring them to pursue careers in chemistry. She focused on providing guidance, encouragement, and promoting interests in the science field for students.

Kwolek had a close bond with her mother. As her mother got older, she made time to assist her with her affairs and ensuring that she was comfortable. This was a testament to her loyalty and the respect she held for her family.