A worked example
Running 5 miles in 45 minutes works out to a pace of exactly 9:00 per mile.
Frequently asked questions
How do I use this to predict a race time?
Switch to 'Time' mode, enter the race distance, and enter the pace you've actually been training at — it projects a finish time at that pace, though fatigue over longer distances usually means actual pace slows somewhat versus shorter training runs.
Why does pace matter more than speed for runners?
Pace (minutes per mile or km) maps directly onto how training plans and race splits are usually described, making it easier to plan and pace a run than working in speed (mph or km/h).
This calculator provides estimates for general informational purposes only.