A free program for Android, by Marcin Zaremba.
Calc4Runner is an application for running, biking, and any kind of physical activity that requires you to keep track of your progress.
In this app, you can calculate your body mass index and heart rate max.
It is also possible to calculate the time that you will reach in the competition at different distances, including the 10km, half marathon, or marathon.
You can also calculate heart rate for each training zone explaining how to achieve your own goal.
The application will also convert the pace to speed, and the result will be the speed, in miles per hour (mph), or in kilometers per hour (km/h).
This is an excellent tool for those who want to reach their goals and keep track of their progress.
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