Kayla Itsines — the world’s richest fitness influencer, creator of the Bikini Body Guide (BBG), and founder of the Sweat app — built one of the most financially successful fitness brands ever created by an individual trainer. Born August 21, 1991, in Adelaide, South Australia, she went from training her sister’s netball teammates to a net worth publicly estimated at $63M+ to $170M+, and in 2026 she became sole owner of Sweat once again.
Kayla Itsines Personal Information
| Category | Details |
|---|---|
| Name | Kayla Itsines |
| Profession | Personal Trainer, App Founder, Author, Entrepreneur |
| Date of Birth | August 21, 1991 |
| Age | 35 (as of 2026) |
| Birthplace | Adelaide, South Australia, Australia |
| Nationality | Australian (Greek heritage) |
| Net Worth | Unverified – estimates range from $63 Million+ up to $170 Million+ per the AFR Young Rich List |
| Spouse | Jae Woodroffe (married December 2023) |
| Kids | Daughter Arna Leia (with ex-partner Tobi Pearce); son Jax (with Jae Woodroffe) |
| Marital Status | Married |
Who is Kayla Itsines
Kayla certified as a personal trainer at 18, developed her HIIT methodology, and launched the BBG program as a 12-week PDF in 2012 that became a worldwide fitness phenomenon. She co-founded the Sweat app with then-partner Tobi Pearce, which was sold to iFIT for $400 million in 2021. She and Pearce bought the app back from iFIT starting in late 2023, and in March 2026 Itsines became sole owner of Sweat after acquiring Pearce’s remaining stake. (Source) She married husband Jae Woodroffe in a backyard ceremony in Adelaide in December 2023; the couple share a son, Jax, and Kayla also has a daughter, Arna, with her ex-partner and former Sweat co-founder Tobi Pearce. (Source)
Kayla Itsines Body Measurements
| Measurement | Details |
|---|---|
| Height | 5 ft 4 in (163 cm) |
| Weight | ~57–61 kg |
| Body Measurements | 34-25-36 inches |
| Eye Color | Brown |
| Hair Color | Dark Brown |
| @kayla_itsines (16M followers) |
Kayla Itsines Latest News (2026)
- Became sole owner of the Sweat app in March 2026 after buying out former co-founder Tobi Pearce’s remaining stake, having bought the app back from iFIT starting in late 2023. (Source)
- Purchased a $13 million waterfront mansion in Mermaid Waters, Queensland, with husband Jae Woodroffe in March 2026 — a five-bedroom estate on 2,280 sqm with 81.5 metres of water frontage, a tennis court, infinity pool, and wine cellar. (Source)
- Named among Australia’s richest under-40s on the AFR Young Rich List, with reported net worth estimates now well above $170 million — a sharp jump from earlier public figures. (Source)
- Spoke at NRF 2026: Retail’s Big Show in New York (January 11-13, 2026) on data, AI, and customer engagement. (Source)
- Married Jae Woodroffe in December 2023; the couple welcomed a son, Jax, together.
FAQs
Kayla Itsines is an Australian personal trainer and entrepreneur, best known for creating the Bikini Body Guide (BBG) and co-founding the Sweat fitness app.
There is no single officially verified figure. Public estimates start around $63 million and go as high as $170 million+ per the AFR Young Rich List, driven largely by the $400 million Sweat app sale in 2021 and her subsequent reacquisition of the company.
She stands at approximately 5 feet 4 inches (163 cm) tall.
She is married to Jae Woodroffe, whom she wed in a backyard ceremony in Adelaide in December 2023. She also has a daughter, Arna, from her earlier relationship with Tobi Pearce.
Yes. After buying the app back from iFIT, Itsines became sole owner of Sweat in March 2026.
