Looking for a career in fitness where you can be your own boss, choose your hours and get paid to have fun on the job?

Establish yourself in fitness with this entry-level qualification. You’ll be equipped with a broad range of knowledge needed to work as a fitness or exercise instructor. You will be able to take your skills and work anywhere in Australia or move into further study to expand your options.

Our goal isn’t simply to see you graduate, but to see you gain employment in the fitness industry. As soon as you commence your studies with us, we will be educating you not just about fitness, but about the fitness industry itself. Our trainers are all highly experienced fitness professionals and are here to offer their expertise and answer all of your burning questions.

Supporting you at every step through your studies

For over 18 years, we’ve successfully supported more than 9,000 students through our SIS30321 – Certificate III in Fitness courses. When you enrol with AOF, you’ll be supported by our skilful team of academic, student support and professional staff, who will be with you every step of your fitness studies journey. Our academic staff are all still working as personal trainers themselves and have extensive teaching histories before coming to work with the Academy of Fitness.

The Academy of Fitness online learning experience includes several student support services that include telephone and written support options.

Our Certificate III in Fitness course is flexible

Academy of Fitness are responsive to the needs of the modern world and busy professionals with families, careers, commitments and demands of everyday life and our study and online learning options are flexible.

Get your FREE course guide below!

For more information on fees, course outlines, career outcomes and course duration.

Our course gives you dual specialisation once you graduate

Gym Instructor

Individuals who specialise in Gym Instruction provide individually tailored client assessments, provide technique correction as needed, and develop and demonstrate fitness programs. They also provide supervision of a facility or service, keep equipment clean, tidy and well maintained, and handle various customer inquiries.

Group Exercise Instructor

Individuals who specialise in Group Exercise Fitness Instruction deliver exercise sessions designed for participation by a group of clients with a mix of ages/fitness levels. Sessions may be freestyle, pre-choreographed or circuit style. These individuals instruct and demonstrate complete exercise sessions to groups with limited individual interaction.

Career Opportunities

Fitness Instructors work with people to support their physical wellbeing and improve their fitness. They usually instruct groups and classes. They work in fitness centres, studios, gyms, physical rehabilitation centres and often work on a casual or part-time basis, servicing more than one provider and set of clients.

This course is an essential minimum requirement to work at a gym or as a group exercise instructor. You will learn the basic knowledge needed to succeed in areas like fitness program instruction, provision of healthy eating information, and introduction of exercise for older clients.

  • Nationally Accredited SIS30321 – Certificate III in Fitness.
  • Complete your theory work online.
  • Complete your practical assessment online.
  • Interest-free payment plan.
  • Upfront payment.
  • Study Loan.
  • Self-paced study.
  • Up to 12 months.
  • Students must be over 16 years of age to start a SIS30321 – Certificate III in Fitness.

Popular Course Packages


Want to become the ultimate personal trainer?

Gain the unfair advantage against your future competitors. Complete the SIS30321 – Certificate III in Fitness and SIS40221 – Certificate IV in Fitness in the Ultimate Package and receive the PT Success Program (non accredited course) FREE OF CHARGE.

We’ve bundled them together as a single package so you can get all the benefits at a lower cost.

Standalone SIS30321 – Certificate III in Fitness

Become a dual specialised gym instructor.

A SIS30321 – Certificate III in Fitness is your entry level on campus and online fitness course to get into the Fitness Industry. It will give you the opportunity to become a Gym Instructor.

Study Online

Flexible Payment Options

Self Paced Study

Ready to start your career in the fitness industry?

Get your FREE info kit