Bike-Calc!

BikeCalc is more than just a bicycle calculator, it can also turn your iPhone into a virtual wind tunnel BikeCalc will allow you to calculate your speed, your power, your distance, your time according to the wind speed and the slope. Study the impact of your weight or that of your bike on your performance. The AeroZero virtual wind tunnel is an in-app purchase that will allow you to make the right choice of equipment and save money on all your future purchases.