The running calculator will give you everything a runner needs to calculate. Result forecast before the competition based on the results from other distances. The most effective training paces for your results - slow, marathon, threshold, interval. The duration of stages in the stadium. Convert pace (min/km) to speed (km/h) if you prefer treadmill workout. Or from kilometres to miles, if you need it. Enter your life records, you will see at which distance you are the king or queen.

The ratios are based on the true performance of amateur runners. This is not a rigid conversion of professionals' performance into slower paces, but the effect of many years of coaching with ambitious amateurs, and observation of your real, not theoretical, possibilities.

You can also share your calculations with your coach or running partner.

We offer you a seven-day test, after which some of the app's functionality will be blocked. Then we encourage you to buy the full version - if you decide that the KS Staszewscy Running calculator has become your running assistant.