Fitness Calculators

Training questions tend to resolve into a pace. How fast were you actually moving, what should the next race cost you, and how hard is an easy run supposed to feel. The calculators in this category answer those from a single input: one recent time over one known distance. From there you get pace per kilometre or mile, a finish-time prediction for any standard race distance, and the five training zones that result supports — easy, marathon, threshold, interval and repetition. Body weight turns on a calorie estimate; elevation gain adjusts a hilly run to its flat equivalent so the numbers stay comparable. Enter your last run and read off the rest.