Running Pace Calculator
Calculate your running pace, finish time or distance for a training run, 5K, 10K, half marathon or marathon. Switch between kilometres and miles, compare speed, and generate even-pace splits to help plan a race or workout.
Calculate your running pace
Enter a distance and total elapsed time to find how many minutes you take per kilometre or mile.
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Even-pace timeline
Projected cumulative time at 25%, 50%, 75% and 100% of the calculated distance.
Race finish times at the same pace
Mathematical projections using your calculated pace, not predictions of race performance.
Running splits table
Even-pace segments with cumulative time and a final partial segment where needed.
| Distance covered | Segment distance | Split time | Elapsed time |
|---|
Splits assume constant average pace with no stops.
Running pace formula: Pace = total elapsed time ÷ distance. A 5 km run completed in 25 minutes gives 25 ÷ 5 = 5:00 min/km, equivalent to approximately 8:03 min/mile or 12 km/h. Reverse the calculation to solve for finish time or distance.
What is a running pace calculator?
A running pace calculator finds the time you spend covering one kilometre or one mile. It can also calculate how long it should take to cover a planned distance at a constant pace, or how far you could travel in a given time. These calculations are useful for reviewing a workout, planning race targets and checking training splits.
CalcuPortal's pace tool supports both kilometres and miles. It displays average pace in min/km and min/mile, converts that pace to speed in km/h and mph, and generates an even-split table and projected times at popular race distances.
Running pace, time and distance formulas
Find pace
Pace = Time ÷ Distance
Example: 30 min ÷ 5 km = 6:00 min/km.
Find finish time
Time = Pace × Distance
Example: 5 min/km × 10 km = 50 min.
Find distance
Distance = Time ÷ Pace
Example: 30 min ÷ 5 min/km = 6 km.
Use consistent units when applying the formulas: a pace in minutes per mile must be multiplied by a distance in miles, not kilometres. The calculator can convert between the two using the exact international-mile definition of 1 mile = 1.609344 km.
How to use the pace calculator
- Choose Find pace, Find finish time or Find distance depending on the unknown value.
- Select kilometres or miles as the input distance and pace unit.
- Enter the known time, distance and/or pace fields for the selected mode. Hours, minutes and seconds are entered separately.
- For a standard running race, choose 5K, 10K, half marathon or marathon to set the race distance where applicable.
- Click Calculate to view the answer, min/km and min/mile pace, average speed, steps and even splits.
- Change the split-unit selector if you want the same estimated run divided by kilometres or miles.
Example: 5K running pace for 25 minutes
Suppose you complete a five-kilometre run in 25 minutes. Divide the total 1,500 seconds by five kilometres to get 300 seconds per kilometre. This equals a pace of 5:00 min/km. Multiply by 1.609344 to convert to approximately 483 seconds per mile, or 8:03 min/mile.
Your average speed is 12 km/h, or approximately 7.46 mph. At a perfectly constant pace, you would reach each one-kilometre split every five minutes. Real runs can be faster or slower across different sections.
| Distance | Elapsed time | Average pace |
|---|---|---|
| 1 km | 5:00 | 5:00 min/km |
| 2 km | 10:00 | 5:00 min/km |
| 3 km | 15:00 | 5:00 min/km |
| 4 km | 20:00 | 5:00 min/km |
| 5 km | 25:00 | 5:00 min/km |
5K, 10K, half marathon and marathon distances
Popular road-race distances include 5 km, 10 km, the half marathon (21.0975 km), and the full marathon (42.195 km). World Athletics confirms that the marathon distance is 42.195 kilometres. The half marathon is exactly half of that distance.
| Race | Distance (km) | Distance (miles, approximate) | Finish time at 6:00 min/km |
|---|---|---|---|
| 5K | 5 | 3.11 | 30:00 |
| 10K | 10 | 6.21 | 1:00:00 |
| Half marathon | 21.0975 | 13.11 | 2:06:35 |
| Marathon | 42.195 | 26.22 | 4:13:10 |
For reference, see the World Athletics marathon overview. Finish times above assume the same average pace can be sustained across the entire route; they are not personal race forecasts.
Running pace chart: min/km and min/mile
Use this chart to compare common running paces and their equivalent average speeds. Faster runners cover the same kilometre or mile in less time, so a lower minutes-per-kilometre value means a higher speed.
| Pace (min/km) | Approx. pace (min/mile) | Speed (km/h) | Estimated 5K finish |
|---|---|---|---|
| 4:00 | 6:26 | 15.00 | 20:00 |
| 4:30 | 7:15 | 13.33 | 22:30 |
| 5:00 | 8:03 | 12.00 | 25:00 |
| 5:30 | 8:51 | 10.91 | 27:30 |
| 6:00 | 9:39 | 10.00 | 30:00 |
| 6:30 | 10:28 | 9.23 | 32:30 |
| 7:00 | 11:16 | 8.57 | 35:00 |
| 8:00 | 12:52 | 7.50 | 40:00 |
What are running splits?
A running split is the time recorded over part of a race or workout — such as each kilometre or mile. For even splits, the time for each equal-distance segment is identical. A negative split generally means the later part of a run is faster than the earlier part, while a positive split means the later part is slower.
This calculator produces an even-pace projection based on a single average pace. It shows the cumulative time after each split and a final partial split for non-whole distances, such as 21.0975 km. It does not model hills, water stops, a progressively faster finish or fatigue.
Pace vs speed: minutes per kilometre and km/h
Running pace
Time required for one kilometre or mile, usually written as min/km or min/mile. A smaller value indicates faster running.
Running speed
Distance covered per hour, shown in km/h or mph. A larger value indicates faster movement.
Track pace
For a standard 400-metre distance, multiply seconds per kilometre by 0.4 to estimate a 400 m split at the same average speed.
To convert minutes per kilometre into kilometres per hour, first express pace as seconds per kilometre, then use speed (km/h) = 3,600 ÷ seconds per km. At 5:00 per kilometre, speed is 3,600 ÷ 300 = 12 km/h.
What is a good running pace for a beginner?
There is no universal running pace that is right for everyone. A person's comfortable pace varies with experience, age, training, terrain, weather and individual ability. For someone new to running, a sustainable conversational effort may be more useful than trying to match another person's number.
Use a calculator to understand your existing average pace and plan realistic splits. An even mathematical pace does not establish a safe or achievable goal for a particular runner. Avoid treating estimated finish times as guarantees.
Common running pace calculation mistakes
- Mixing kilometres and miles: 5:00 per kilometre is not 5:00 per mile; convert using 1.609344 km per mile.
- Using decimal minutes as seconds: 5.5 minutes is 5 minutes 30 seconds, not 5:50.
- Confusing pace and speed: lower min/km is faster, while higher km/h is faster.
- Rounding seconds without carrying: an answer near 4:59.8 rounds to 5:00, not 4:60.
- Ignoring stoppage time: a moving pace and total elapsed-time pace can differ if you take breaks.
- Treating split projections as predictions: even-pace tables assume constant speed throughout the event.
Related fitness and conversion calculators
Frequently Asked Questions
How do I calculate running pace?
Divide elapsed time by distance in matching units. Running 5 km in 25 minutes gives a pace of 5:00 per km.
How do I convert min/km to min/mile?
Multiply pace in seconds per kilometre by 1.609344 to obtain seconds per mile. For example, 5:00 per km is approximately 8:03 per mile.
How do I find finish time from pace?
Multiply seconds per kilometre by kilometres, or seconds per mile by miles. At 6:00 per km, a 10 km run takes 60 minutes at a constant pace.
How far can I run in 30 minutes at 5:00/km?
Thirty minutes divided by five minutes per kilometre equals six kilometres, assuming a consistent average pace.
How long are a half marathon and a marathon?
A half marathon is 21.0975 km and a marathon is 42.195 km. The converter uses those distances in its presets.
Are race finish-time estimates guaranteed?
No. They show what the time would be at the same average pace across another distance; they do not account for fatigue, course difficulty or race conditions.
Is a faster pace a smaller or larger number?
In minutes per kilometre or mile, a smaller number means a faster pace. In kilometres or miles per hour, a larger number means a faster speed.
Last updated: October 18, 2026. All pace splits and race finish times are mathematical estimates assuming a constant average pace. Actual running performance, elapsed time and moving time may differ. This page does not provide individualized training or medical advice.