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Not saying it’s useless, but if you have time to open the browser, wait for the web page to load, you have time to launch your local calculator.
How do you simplify doing arithmetic on a calculator when you’ve got to deal with minutes and seconds? For example, how would you calculate the min/km pace for running 5km in 21:45?
45 seconds is just 0.75 minutes. 21:45 is 21.75 minutes.
21.75 / 5 = 4.35 minutes per km
Or if you prefer to keep seconds, 21 / 5 = 4 minutes and 12 seconds, 45 / 5 = 9 seconds. Those are the times you’ve run 1 km in average and they add up to 4:21, 4:21/km.
