For the track, the pool and the bike
On the track, the track split calculator gives 100, 200 or 400 m splits for any goal and shows how much farther each outer lane runs, calculated from the World Athletics measuring rules: lane 8 is 453.03 m per lap.
Triathletes can put a swim pace, two transitions, a bike speed and a run pace into the triathlon calculator for a finish estimate at sprint, Olympic, 70.3 or full distance. The swim pace calculator converts a swim time to pace per 100 m and per 100 yards.
For cycling, the cycling calorie calculator estimates calories. For speed, power and gearing, try the Bike speed by cadence and gear tool, the Cycling power calculator, the Watts per kg calculator and the Bike gear calculator on rpmkit.com.