Running tools
Free calculators for pace, race times and training paces. No sign-up, in miles or kilometers.
Calculator
Running pace calculator
Work out your pace, finish time or distance for any run, in minutes per mile or per kilometer.
Calculator
Race time predictor
Predict your 5K, 10K, half marathon and marathon times from one recent race.
Calculator
Training pace calculator
Get your easy, tempo and interval paces from a recent race or time trial.
Want a plan built for you?
Kiki builds your own day-by-day plan, and adapts it as you go.
Free to download · For iPhone