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Katelyn Ernst

Personal

Born: February 13, 2004

Birthplace: Charlotte, North Carolina, United States

Nationality: American

Ethnicity: Caucasian

Professions: Fitness Trainer, Influencer, Sportswoman: Runner, TikTok Star, YouTuber

Body

Hair color: Brown

Eye color: Brown

Height: 5'4" (or 162 cm)

Weight: 116 lbs (or 53 kg)

Measurements: 30-22-32

Bra/cup size: 30B

About Katelyn Ernst

Katelyn Ernst is a prominent TikTok content creator known for her engaging performances shared on her account, katelynernst4. She gained recognition for her dance routines, lip-sync videos, and modeling showcases set to popular music. With a follower count exceeding 650,000 on TikTok, her popularity continues to grow. Katelyn made her initial appearance on TikTok in October 2021, debuting with a modeling video that carries the caption, "Cheesy hoco dress video." Towards the end of 2021, she enjoyed the thrill of indoor skydiving at an iFLY facility. She has also created content while wearing a University of Kentucky sweater. In April 2022, one of her dance videos achieved viral status, amassing over 3 million views. By February 2026, Katelyn has gathered 563,000 followers on Instagram, 1.3 million on TikTok, and 32,300 subscribers on her YouTube channel. She also has a twin, Julia Ernstt, who appears on Babepedia.