Over the years there have been a few methods for calculating esimated race finish times for distances never run before. This calculator shows the results of formulas by Peter Riegel and Dave Cameron.
Enter either a previous finish time or an average pace and the results will calculate the estimated finish times of other distances.
1Select if you are working in metric (kilometers) or imperial (miles) units
2Select if using a race finish time or average pace
3Enter the finish time or average pace
4Select the distance this time or pace corresponds to
5See the estimated race times for common race distances below based on your input values of running 0 in 0
The results from all formulas tends to fall away towards the extremes so the very short or very long races may be somewhat unreliable however the 5k to marathon range tends to be fairly well accepted as a good guide.
Another way to predict a race time is to use the age grade calculator which, when including age, will use age grading tables to calculate an age grade score, then use this to predict equivalent age graded times for other distances.
Calculations here are based on