Janhvi Kapoor was born on 7 March 1997 to the actress Sridevi and the film producer Boney Kapoor.
She has one younger sister, Khushi, and two half siblings, actor Arjun Kapoor and Anshula Kapoor. She is the niece of actors Anil Kapoor and Sanjay Kapoor. She studied at Dhirubhai Ambani International School in Mumbai.
Before making her film debut, she took an acting course from Lee Strasberg Theatre and Film Institute in California.