Sport & fitness
Sport & fitness: 6 free calculators & tools, including Running pace and Swimming pace and pool lengths. Explore formulas, examples and visual explanations.
Running pace
Solve pace, time or distance and generate splits at a constant speed.
Swimming pace and pool lengths
Compare pace per 100 metres or yards and track complete lengths and partial distance.
Barbell plate loading
Build a symmetric barbell load with clicks or drags, limited by sleeve space rather than an example plate inventory.
Bicycle gearing and speed
Compare gear ratios, development and speed using wheel rollout and pedalling cadence.
Bicycle spoke length
Calculate left and right spoke lengths from rim ERD, flange geometry and crossing counts.
Adult BMI calculator
Calculate body mass index from height and weight in metric or imperial units, with adult CDC category ranges.