Suspension Exercise New Zealand
Free TRX Calculators & Tools
Seven free calculators to set up your suspension trainer, dial in difficulty and plan smarter training. No sign-up, works on any device.
7 free tools
No sign-up
Mobile friendly
Pick a tool
Our TRX calculators
Setup Calculator
Enter your anchor height and your height to get the right strap length and settings for every suspension exercise.
Open toolWorkout Builder
Choose your goal, fitness level and time, and get a structured suspension session with sets, reps and strap settings.
Open toolCalorie Calculator
Estimate the calories you burn in a session from your bodyweight, how long you trained and how hard you went.
Open toolProgression Calculator
See exactly how to make any exercise easier or harder by adjusting your body angle and foot position.
Open toolLoad & 1RM Calculator
Estimate the load on the straps and your 1RM-equivalent from your bodyweight, body angle and reps.
Open toolAnchor & Space Calculator
Check if your door, ceiling, beam or wall suits a TRX, the clearance you need and how to anchor it safely.
Open toolProgram Planner
Build a periodised 8 to 12 week plan from your goal and weekly sessions, with phases, volume and deload weeks.
Open toolWhat people say
Loved by suspension trainers
★★★★★
"The setup calculator saved me so much guesswork. I finally have my straps at the right length for every move."
Jeremy Allen Home trainer, Sydney
★★★★★
"I use the workout builder before every session. It keeps my training varied and I never have to think about what to do."
David Salet Beginner, Melbourne
★★★★★
"The progression tool finally explained how body angle changes difficulty. Game changer for getting stronger."
Eric Chavez PT client, Brisbane
New to suspension training?
Start with the Setup Calculator to get your straps and anchor right, then build your first session in seconds.
Start with setup