How to use it
Choose kilometers or miles, then pick what to work out. To find your pace, enter a distance and the time it took (25:00 for a 5K gives 5:00 per kilometer). To find a finish time, enter the distance and the pace you want to hold. To find how far you can go, enter a time and a pace. Buttons fill in common race distances. Times can be written as h:mm:ss, mm:ss or plain minutes.
The result also shows the pace in the other unit (5:00 per km is about 8:03 per mile), your speed in km/h or mph, and a table of split times for every kilometer or mile at an even pace, which is handy to print or copy for a race.
Predicted race times
The lower table uses Peter Riegel’s formula, t₂ = t₁ × (d₂ ÷ d₁)^1.06, to estimate your time over other distances from the one you just entered. It is a rough guide: it works best between a mile and a marathon, and assumes you have trained enough for the longer distance. Real races also depend on hills, weather and fuelling.
Questions
Is it good for cycling? Yes; the speed line gives km/h or mph. Does it include rests? No, it assumes you move at an even pace the whole way. Is anything saved? Only your choice of units. See also the Timer and Stopwatch.