MATH! Keep in mind that it will not be accurate to the last calorie burned, but if you are honest with your height and weight it will be damn close!
Mobile Product Manager by day, runner by night. Robin is one of the founders of the Run Trainer app and started running back in 2012. With a mix of his personal running experience and as a proffesional mobile app manager he tries to thrive the best UX and innovation to Run Trainer.