Why track pace calculator in ClinicalTools
Every runner does the same mental arithmetic: if I ran that loop in 26 minutes, what's my pace, and what does that mean for the race in October? ClinicalTools does it for you, in whichever units you think in.
Enter a distance in miles or kilometres and a time in hours, minutes and seconds. The calculator returns your pace per mile and per kilometre and projects your finish time at that pace over the standard race distances — 5K, 10K, half marathon (21.0975 km) and marathon (42.195 km).
It lives alongside the Step Counter and Training Tracker, so your cardio sessions, your daily movement and your race planning are in the same app as your blood pressure and weight — which is where a cardiologist would want them.
Three steps, every time.
Enter the distance
In miles or kilometres, with decimals — 3.1, 5, 13.1, whatever you ran.
Enter the time
Hours, minutes and seconds from your watch or the treadmill display.
Read pace and projections
Pace per mile and per kilometre, plus projected 5K, 10K, half and full marathon times.
What the Pace Calculator tool does
Miles and kilometres
Choose your distance unit; the pace is shown per mile and per kilometre regardless.
Race finish projections
See what your current pace means over 5K, 10K, half marathon and marathon distance.
Set training targets
Work backwards from a goal time to the pace you need to hold, then take that pace to the track.
Exact race distances
Half and full marathon projections use the official 21.0975 km and 42.195 km distances.
Works offline
No account, no network, no ads — open it on the trail and it just works.
Pairs with Training Tracker
Log the run itself, with heart rate and distance, in the Pro Training Tracker.
For recreational runners and first-time racers
If you are training for a first 10K or trying to break four hours in a marathon, the projection tells you honestly whether today's pace gets you there. Walkers and treadmill users get the same benefit — a consistent pace number that makes progress visible week to week.
Your pace calculator data stays yours.
No account, no login, no server run by us. Data lives on your iPhone or iPad. Every export and share is something you start.
Pace Calculator — common questions
Is the pace calculator free?
Yes, completely. It is one of the free tools in ClinicalTools.
Which race distances does it project?
5K, 10K, half marathon and full marathon, using your pace from the distance and time you entered.
Can I use kilometres?
Yes. Enter distance in km or miles; the pace is shown both per kilometre and per mile.
Does it track my runs with GPS?
No — it is a calculator, not a GPS tracker. Use your watch or phone to time the run, then enter the numbers. The Training Tracker (Pro) is where you log the session.
Is it accurate for walking?
Yes. Pace is pace; walkers use it to track a steady improvement just as runners do.