Kayla Itsines - Updated May 2024

Updated On February 12, 2024
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Kayla Itsines

Kayla Itsines is a famous Australian personal fitness trainer, author as well as an entrepreneur. Kayla Itsines is the world-famous owner of a series of fitness eBooks called ‘Bikini Body Training Guide’ and also a nutrition planning and workout app called ‘Sweat with Kayla’.  The app became the most revenue-generating app in 2016. She is presently a YouTube star and a popular social media personality.

Early Life and Childhood

Kayla Itsines was born on 21st May 1991 in Adelaide, South Australia, Australia. As of 2024, she is 31 years old. She was the elder daughter of her parents Anna Itsines and Jim Itsines.

Both of her parents were teachers whereas Leah Itsines who is her younger sister is also a personal trainer and food stylist.

Itsines grew up in Australia. Her nationality is Australian and belongs to the Greek-Australian ethnicity. She had the dream of becoming a beauty therapist. As a child, her interest was in basketball but was underweight and unhealthy.

When Itsines was 15, she got medical advice that she might suffer from fertility problems due to endometriosis.

After realizing that her infertility can be cured, Itsiness started working out at a gym. She got so overwhelmed by fitness that she abandoned her primary goal of becoming a beauty therapist.

After completing her high school studies in Adelaide, he graduated from the Australia Institute of Fitness as a Master Trainer at the age of 18.

Kayla Itsines – Body Measurements

Kayla’s height and weight are 173 cm and 121 lbs respectively. Because she’s a fitness trainer she has an athletic body structure. She has been maintaining her body perfectly.

Her body measurements are 34-26-35 with a bra size of 33B. She possesses hazel-colored eyes with dark brown hair. Furthermore, Itsines’s shoe size is 8.

Kayla Itsiness

Caption: Kayla Itsiness showing off her abbs. Source: Instagram

Kayla Itsines – Relationship Status

Kayla has been in a loving relationship with her fiance Tobi Pearce since 2013. She and Tobi announced their through Instagram in December 2018 about their relationship.

They said they are expecting their first child in May 2019. Recently, she gave birth to a little girl and named her Arna Leia Pearce.

Kayla Itsiness

Caption: Kayla with Tobi. Source: Instagram

Kayla Itsines – Early Career

After graduating from the University, Kayla started her career working at a women’s gym in Adelaide. She soon realized that her clients were not having satisfying results from performing workouts on machines.

So, she decided to give her clients a routine of aerobic exercise that mainly focused on smaller inner thighs, flatter abdomen, and toned arms which her clients loved.

The moment he realized that her clients loved to work out at home rather than in the gym, she designed exercises for working out at home with less equipment and less space.

He also personally started training her sister’s friends who wanted to improve their physique so that they could play Netball on their high school team. She promoted her new exercises through her Instagram by uploading a picture of her clients before and after their progress.

She had a supportive life partner who inspired to her become a successful fitness model. She met Tobi Pearce at a gym in 2013. At that time, Tobi was studying to get two degrees in Law and Commerce. He was also studying to be a personal trainer.

Main Career

In March 2013, Kayla Itsines and Tobi founded a Bikini Body Training Company where she was the director and Tobi was the CEO.

She published the first two ‘Bikini Body Guided’ named Itsines’s Workout in the first volume and nutrition information from dietitians Julie Dundon and Anne Schneyder of Nutrition Professionals Australia in the second volume in January 2014.

By the following October, more than a million guides had been downloaded. Her guide was neither for muscle gain nor weight loss but was for having a desired particular look.

In 2015, Itsines went on a world tour, the ‘Kayla Itsines Bootcamp World Tour’ whose motto was to lead free group fitness classes. She toured Australia’s capital cities, New York City, Los Angeles, and London.

In April of the same year, she was featured in an Apple advertisement for the Apple watch which demonstrated the heart-rate monitor feature of the product.

Kayla Itsiness

Caption: Kayla Itsiness making her video. Source: Instagram

Entrepreneur Career

The initial release of ‘The Sweat with Kayla app in November of 2015 met criticism from customers that the app was too costly and customers demanded a discount for it as they had already paid for the Bikini Body Guided eBook.

So, she had to reduce the cost of the app to $1 for the first month for the existing customers of her previous eBook.

Pan Macmillan published her first print book in November 2016 named ‘The Bikini Body 28-Day Eating and Lifestyle Guide. In August, her second print book release date was announced, ‘The Bikini Body Motivation & Habits Guide, which was released in November 2017.

She gives credit to her social media success which has allowed her to keep track of followers and their fitness life. She has been happily living with Tobi together since 2013. She has two Siberian huskies named Ace and Junior.

Itsines gave up alcohol in 2011. Currently, she is personally training a small number of long-time clients along with her staff.


Her details about achievements are unknown. However, Itsines has toured many places with her training schedule and provided free group, fitness classes. Kayla has earned herself the title of ‘Fitness Queen’. However, she hasn’t won any recognizable awards in her life.


She never had a controversy with anybody because she committed herself fully to her fiancé Tobi. Likewise, she stays away from all kinds of possible rumors and follows a healthy life.

Social Media

Kayla Itsines is very active on her social media platforms, especially on Instagram. Although she doesn’t upload her photo she shares the before-and-after photos of her clients to motivate her followers.

Currently, Itsines has 12.6M followers on Instagram which is comparatively higher than her 409.3K Twitter followers. Furthermore, she also has had her own YouTube channel since 2012.

Now, her channel has over 332K subscribers. Her YouTube videos are generally about fitness and tips to stay healthy.

Kayla Itsines – Net Worth 2024

Kayla is the Fitness Queen of 2016. In 2016, her app became the app to earn the highest revenue from other fitness apps. Her net worth was reported to have been around $46 million. But as of 2018, her approximate net worth is $63 million US dollars.