PaceX tools
Running pace
calculator.
Enter a race distance and finish time to find your average running pace per kilometre and mile.
Your finish time
Your average pace
A 50:00 finish over 10 km.
How it works
One number to pace the whole effort.
Your average pace is your total finish time divided by the distance. Use it to set a target for your next 5K, 10K, half marathon, or marathon—then adjust for terrain, weather, and how your training feels.
Take the plan with you
Race pace is more useful when it stays within reach.
PaceX turns a finish-time goal into a practical running pace, then keeps race prediction and training zones close on iPhone, Apple Watch, and widgets.