Running Pace Calculator
Enter a distance and a finish time to get your pace per kilometre and per mile, plus your speed in km/h and mph.
Your pace & speed
Pace is your elapsed time divided by the distance covered; speed is the same figure the other way round. Miles use the international mile of 1.609344 km.
Why pace is the number runners live by
Pace is the common language of running: it lets you compare a track session to a stroller jog, judge whether a long run is too fast, and set a realistic target for a race. Knowing your pace per kilometre and per mile also makes it easy to translate a plan written in one unit into the other.
Between school runs and nap schedules, most running parents piece together whatever time they can. Checking your pace after a run tells you what that squeezed-in session actually delivered, and whether you were cruising or pushing.
Frequently Asked Questions
How do I calculate my running pace?
Divide your total time by the distance you covered. For 5 km in 30 minutes, that is 1800 seconds ÷ 5 km = 360 seconds, or 6:00 per kilometre. The calculator does this for both kilometres and miles, and also gives your speed.
What is the difference between pace and speed?
Pace is how long it takes to cover one unit of distance (minutes per km or per mile) — lower is faster. Speed is the reverse: distance per unit of time (km/h or mph) — higher is faster. Runners usually think in pace; treadmills and cyclists tend to use speed.
How do I convert pace per km to pace per mile?
One mile is 1.609344 km, so your per-mile pace is your per-km pace multiplied by 1.609344. A 6:00/km pace works out to about 9:39/mile. The calculator shows both so you don't have to do the conversion.
Does this account for stroller running or hills?
No — it reports the pace and speed for the distance and time you actually ran. If you want to estimate how much a stroller slows you down, use the stroller pace adjuster; for run/walk sessions, the run/walk interval calculator breaks the time down.
What pace should a beginner aim for?
There is no single right pace — a comfortable effort where you can still speak in short sentences matters far more than a number. New and returning runners often start with run/walk intervals rather than a steady pace; build the habit first and let pace follow.
Estimates and heuristics for general information — not medical or professional fitness advice. If you are returning to running after pregnancy, get medical clearance from your doctor or a pelvic-health professional first.