Enter a distance and time to instantly see your pace per kilometer, pace per mile, and overall speed.
Pace per kilometer
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Pace is shown as minutes:seconds per unit of distance. Speed assumes a constant pace over the whole distance.
Example
Running 10 km in 50 minutes (3000 seconds):
Pace per km = 3000 / 10 = 300 s = 5:00 /km
Pace per mile = 3000 / 6.2137 = 482.8 s = 8:03 /mi
Speed (km/h) = 10 / (3000/3600) = 12.00 km/h
Speed (mph) = 6.2137 / (50/60) = 7.46 mph
How it works
Pick your distance unit and type the distance, then enter the time as hours, minutes, and seconds. Pace and speed update live as you type.
Good to know
This Pace Calculator turns a distance and a finish time into your running pace per kilometer and per mile, plus your average speed in km/h and mph. It is built for runners, joggers, and walkers who want to understand how fast they actually moved during a session or race, and it works equally well whether you train in metric or imperial units thanks to the kilometers/miles toggle.
Reach for it after a run when your watch or app only gives you the total distance and elapsed time, or before a race to work out the steady pace you would need to hold to hit a target finish time. Because every field recalculates live as you type, you can also experiment: nudge the minutes up or down and watch how a few seconds per kilometer change your projected speed.
To read the result, remember that pace and speed move in opposite directions. A lower pace number (less time per unit) means you are running faster, while a higher speed number means the same thing. The headline figure is pace per kilometer shown as minutes:seconds, and the cards beside it give the mile equivalent and both speed readings so you can compare against treadmill displays or race pace charts.
One caveat: the speed and pace shown are averages that assume you held a constant effort across the whole distance, so they smooth over fast finishes, walk breaks, and hills. If your run included a long warm-up or stops, the average pace will look slower than your true running segments. Everything runs in your browser, so no run data leaves your device.
Frequently asked questions
What is the difference between pace and speed?
Pace is the time it takes to cover one unit of distance (for example 5:00 minutes per km), while speed is the distance covered per unit of time (for example 12 km/h). They are inverses of each other; a faster runner has a lower pace number and a higher speed number.
How do I convert pace per km to pace per mile?
Multiply your seconds-per-km pace by 1.609344, the number of kilometers in a mile. This calculator does it automatically: a 5:00/km pace becomes about 8:03/mi.
Is my data uploaded anywhere?
No — this calculator runs entirely in your browser; nothing is uploaded.
Is this a substitute for medical advice?
No. These are educational estimates — consult a qualified health professional for medical decisions.
People also ask
What is a good running pace per km for a beginner?
There is no single standard, since pace depends on age, fitness, terrain, and goals. Many new runners cover a kilometer somewhere between roughly 6:00 and 8:00, but a comfortable conversational pace matters more than any specific number when starting out.
How do I calculate the pace I need to finish a 5K in a target time?
Divide your target time by the distance to get pace per unit. For a 5K in 25 minutes, that is 1500 seconds divided by 5 km, which equals 300 seconds, or 5:00 per km. You can also enter the target time and distance into this calculator to see the required pace directly.
What does min/km mean on a running watch?
Min/km, or minutes per kilometer, is your pace: the time it takes to cover one kilometer at your current rate. A reading of 5:30/km means each kilometer takes five minutes and thirty seconds.
How do I convert running speed in km/h to pace per km?
Divide 60 by your speed in km/h to get minutes per km. For example, 12 km/h equals 60 divided by 12, which is 5 minutes per km. Pace and speed are inverses, so as one rises the other falls.
Is pace per mile slower-looking than pace per km?
Yes. A mile is about 1.609 kilometers, so the per-mile pace number is larger than the per-km number even though you are running at the same effort. A 5:00/km pace is roughly 8:03/mi.
Why does my calculated average pace look slower than how fast I felt I was running?
Average pace spreads your total time across the whole distance, so any walking, stopping, warm-up, or slow sections pull the number down. Your moving or interval pace during the fast portions will be quicker than the overall average.
How many seconds per km separate a 1:609 conversion between miles and kilometers?
To convert pace per km to pace per mile, multiply the seconds-per-km value by 1.609344. The difference grows with slower paces, so the gap between the two numbers is larger for a recreational runner than for a fast one.
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