Exercise calculators
for Australians.
Tools for cyclists and active Australians who want precise numbers rather than rough estimates. From gear ratios and bike fit measurements to cadence and training zones — everything calculated from your actual setup.
5 tools available
All exercise calculators
Gear Ratio Calculator
Calculate your bike's gear ratios, speed, and cadence for any setup.
Open calculator →Bike Fit Calculator
Get your ideal saddle height, reach, and stack based on your measurements.
Open calculator →MET Calculator
Calculate age-adjusted calories burned for 35+ activities using Metabolic Equivalent of Task values.
Open calculator →Exercise Benefits Calculator
Compare the evidence-based health benefits of 11 exercises — heart health, bone density, mental health, balance, and longevity.
Open calculator →Workout Builder
Generate a personalised workout plan based on your goal, fitness level, age, equipment, and available time.
Open calculator →Why use these tools
Built for the real decision, not the generic one.
Real cycling maths
Gear inches, metres of development, and speed at cadence — all calculated from ISO wheel diameters plus tyre width, not just rough approximations.
Full cassette comparison
Don't just calculate one gear — compare your entire cassette range in a single table. Click any row to select that sprocket instantly.
Bike fit from your measurements
Saddle height, reach, and stack calculated from your inseam and torso length — a starting point for dialling in your position.
Any drivetrain supported
Road, gravel, MTB, fixed gear — our gear calculator covers chainrings from 28T to 56T and sprockets from 10T to 36T with all common wheel sizes.
Difficulty labels that make sense
Climbing, easy, moderate, hard, very hard — colour-coded by gear inch range so you can instantly see where each gear sits.
Copy and share results
Copy your full gear setup — ratio, gear inches, development, and speed — in one click to share with your coach or riding group.
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