Bike Calculator Pro is a must have calculator for all level cyclists.Bike Calculator Pro helps you calculate speed, power, time, distance , calories and much more. It takes into account a cyclists position on a bike, tail/head wind speed, gradient, cyclist weight, bike weight, type of tires, elevation, temperature, etc. Bike Calculator also calculates your BMR, BMI and Power to Weight ratio. Have you ever wondered how many calories you would burn going 15.3 mph for 32 minutes with a head wind of 4.1 mph and going uphill with a gradient of 3.2% at an elevation of 620 feet and outside temperature of 56F? Or what distance you will cover and what your speed will be if you ride for 55 minutes with 360 Watts output, position on hoods, head wind of 2.1 mph, gradient of 0.5% uphillOr how much power (Watts) you need to ride your bike uphill with an 8.9% gradient, with head wind of 2.8 mph and with the speed of 8 mph and what distance you will cover for 31 minutes with these parameters. Bike Calculator Pro has all the answers!Metric and US units.