Running tool
Calculate your running pace in seconds. Enter any two of distance, time or pace and PocketPacer instantly gives you the third — for 5K, 10K, half marathon, marathon or any custom distance.
Pace is how long it takes you to cover one unit of distance — usually a kilometre or a mile. A 5:00/km pace means every kilometre takes five minutes.
Knowing your target pace is the single most useful piece of information for race day. It tells you exactly how fast to run from the first step and stops you blowing up halfway through.
Open PocketPacer and pick a distance. Enter your target time (for example 25 minutes for a 5K) and your pace appears immediately, with even splits down each kilometre.
You can also work the other way: enter your pace and a distance and see your predicted finish time.
A pace calculator converts your distance and time into a pace per kilometre or per mile. Enter any two of distance, time and pace and the calculator solves for the third using a simple time = distance × pace formula.
A 25 minute 5K is exactly 5:00 per kilometre, or about 8:03 per mile. Hold that pace evenly and you finish in 25:00.
Most new runners are comfortable somewhere between 6:30 and 8:00 per kilometre (10:30–12:50 per mile). Pace matters less than consistency in the first months — easy runs should feel conversational.
No, most of your weekly mileage should be easy running. Race pace work is typically a small share of training, used in tempo runs, intervals and race-specific sessions close to your goal event.
Yes. PocketPacer supports both metric and imperial units. Pick your preferred unit once in settings and every pace, split and prediction follows.