Enter a distance and time you've run to find your pace, then see what that same pace would produce over common race distances — useful for pacing strategy or picking a goal time.
Pace Calculator
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The formula
5 miles in 45:00: pace = 45 ÷ 5 = 9:00 per mile. At that same pace, a 10K (6.21 miles) would take about 55:55, and a marathon about 3:55:xx.
Step-by-step guide
- Enter the distance you ran and choose miles or kilometers.
- Enter the time it took, in hours, minutes, and seconds.
- Read your pace, then check the projected times for common race distances at that same pace.
Common mistakes
Frequently asked questions
How accurate are the race time projections?
They're a simple straight-line projection assuming your pace holds exactly. Longer races usually see some pace drop-off due to fatigue, so treat these as optimistic upper-end estimates, not guarantees.
What's a "good" pace?
It depends entirely on your experience, goals, and the distance — there's no universal "good" number. Many runners track their own pace over time rather than comparing to others.
Can I use this for cycling or swimming pace?
The pace math works the same for any distance-and-time activity, though the race-distance comparison table is specifically set up for running distances.
Related calculators
See more in the Health Calculators section, or try the Target Heart Rate Calculator and Calories Burned Calculator.