RunPackFree tools
Running calculators
Free tools for runners and the people who organise them. They run in your browser; nothing you type is sent anywhere.
Running pace calculator
Pace per km or mile from a finish time, or a finish time from a pace. Even splits and predicted race times.
5K pace chart
Goal times from 15 to 45 minutes with pace and checkpoint splits.
10K pace chart
Goal times from 35 to 90 minutes.
Half marathon pace chart
Goal times from 1:20 to 3:00, with splits at 5 km, 10 km and 10 miles.
Marathon pace chart
Goal times from 2:30 to 6:00, with splits at 10 km, halfway and 30 km.
Heart rate zone calculator
Your five training zones from age, resting and maximum heart rate (Karvonen).
VO2 max calculator
An estimate from a race, the Cooper 12-minute test or your heart rate, with race times for each value.
Running club name generator
Names for your crew, club or group chat, built from where and when you run.
Then go run it with friends.
RunPack is a free GPS run tracker for iPhone with a private feed for your running crew and a weekly challenge that fits every pace.
Download on theApp Store