Running Base Building Calculator. Use this calculator to safely increase your total distance each week. Generate a FREE training plan and download as .xlsx'
Learn MoreHow long will it take you to run a specified distance? Use this calculator to find out. Use either Km or Miles.
Learn MoreCalculate your Lactate Threshold Pace according to the principles that Pete Pfitzinger outlines in his book: "Faster Road Racing"
Learn MorePredict how long it will take you to run a race based on an existing race time.
Learn MoreThe split calculator allows you to calculate what your lap (split) times should be for a given distance. You can also calculate negative or positive splits.
Learn MoreRunnerscalc.com is developed and created by Ross Griffin. The goal of Runnerscalc.com (Runners Calculator) is to be a Swiss-army knife suite of tools for runners that care about the nuances of running.
Ah shucks! Sorry! You can recommend calculator ideas by submitting this form: Report a bug or request a new calculator